The problem here is, that it's a complex issue. Different people like different kinds of content. It's impossible to create a plattform/developer deal where all players are happy. There will always be some people who hate the concept you chose.
Personally I am a huge fan of physical items. Therefore it bugs me that I will miss something, when I do not order the XBone edition (and I do not own a XBone and do not plan to buy one). A real disappointment.
Other people are "digital completists" and want every bit and byte they can get but do not mind to miss out on cards, maps and so on. Therefore these people will agree with the statement: Missing a card game is better than missing DLC.
And again others want every bit and byte and every card and map and stuff. Simply Everything.
But I would also say that this depends and is a little bit more complex then just personal preference for DLC or physical items.
I am a huge Assassins Creed fan and most time I buy one of the more expensive editions because I like the physical items and at first: Wanted as much extra DLC/ULC as I could get. One thing I learned there is: Not every DLC (or ULC) is worth the trouble. Most "exclusive missions" in Assassins Creed were merely "ok". I would not have missed an unique experience or something if I would have missed those. So I stopped hunting for those. If I get extra missions it's ok, but if I miss out on ULC: I don't mind. This is the way I handle it for most games nowadays.
Other ULC in other games might even break the game a little bit. For example: Getting a really good sword at the start of the game, which makes all fights more easy. Or they are kind of pointless because they are just copies of items with unique paintings or something. They might even become useless after a certain point as you get better weapons (sticking with that example).
So what I am saying: Sometimes missing out on a certain DLC/ULC is not really a loss.
There are other games, though, were this ULC is very well made. Even I would be disappointed to miss those.
But most preorder items or exclusive items/missions I saw fall into one of the above examples. So missing out is not that big of a deal.
So as I said: Complex stuff. I don't thing you can offer those deals to the companies and still make it that way that every player will be happy.
So... Coming back to the topic: The XBone exclusive items.
I am still a fan of the idea, that Collector Editions are fan service. (Kind of. I know that a lot of companies seem to loose that way of thinking of CEs.) Something you give your greatest fans as a little thank you (even if they have to pay more - they will get more. It's a special offer.). Something just for the greatest fans that want to have more of your franchise.
But coming from that point of view:
Exclusive items in only certain versions of the Collector Editions feel... Like a punch in the stomach. The people that buy these editions are your greatest fans. They will pay extra to get a little bit more... and still get not the best package. And the only reason, why they do not get the best package is: They do not own the correct plattform.
Using these editions as... bait, to get people on certain plattforms just feels not right. (And I know: It's not alone CDProjektREDs fault.)
Personally I would prefer one of those deals:
* Time exclusives (but I can see why the companies might not really want those, they are not that strong as exclusives). Most times "getting it later" is still better than "missing out completely".
But again: It depends. When the game is short and has low replayable value a time exclusive means that all players who play fast will miss it. You also might want to have a certain ULC item on your first playthrough/start of the game because it becomes weaker, when you get it later (like the sword, that becomes replaceable at a certain point).
For physical items... Maybe some kind of a discount. Like, selling the card game separately and XBone users get it 20% cheaper because there is a code in the box or something. You still have the problem, that people get more for paying the same, though. The comic is also an ok example. You can buy it or you can get it for free when preordering or buying the GOG-version. This way at least you do not miss something.
* Purely optical items/slightly chanced items. I love my robotic dog in Mass Effect 3. But he does not really do anything. He is just there. If you missed the K-9 it's bearable. Other games have skins or costumes which do not really do anything but chance your character.
This may also apply to physical items. I liked the idea of Assassins Creed II's CEs: White edition had a white figurine, black edition had an identical figurine in black*. But here it comes again to taste: Some people preferred the white assassin, others the black. So people might again get disappointed if they get the "wrong" figure on their plattform. But you get the idea. It's not the biggest loss, if you get a slightly altered item... Maybe use better paper (or leather) for a map. PC gets paper map, XBone gets a map of a higher quality. That would also make the differences a little bit more... subtle. You still get the map, you have not to miss it, but the quality is a little bit lower. (And again: Taste, if people accept that.)
* Something like an additional mini CE for XBone. So you have a full CE, which is identical for all plattforms but a small, exclusive version for XBox which has some CE items. So maybe a "XBone exclusive Card game edition" which has the standard game, the card, the game at a good prize. So the biggest fans can still get their complete, big package but the fans who do not want to pay that much have a small alternative.
I don't know. Just some version, where nobody has to miss out completely...
As a fan of trading card games it would've been nice to play the card game with real cards with my boyfriend.
(The thing I would really prefer is: Stop this exclusive nonsense. It's win/win for the developer and the console companies - yes, but most time the players lose (depending on their personal taste). But I see why that might be something that you would not want to miss. And yes, I understand that those deals mean better games for us as you can invest more. But on short terms: Missing out on something is not cool.)
(* And no: I do not think that the way UbiSoft went since then was a good won. Too many CES...)
