All of these "DLCs" are ripped straight out of the release version. I don't understand how you people can praise them...
They're free. It'd be a whole other story if they weren't. People tend to like free stuff. Waiting for new content to release gets people excited or even hyped. We Germans call it 'Vorfreude' which can be translated into something as 'joyful anticipation'. This experience would be lost if it was all included in the game from the get-go. It also gets people to stay tuned.
Another thing is that you don't know what's yet to come.
I wouldn't say they're all are ripped out of the release version, such like an alternate look for a character for example, which is, as the name suggests, just an alternative which you may or may not use.
I personally like TW3's DLCs, I was quite disappointed that I couldn't get any fitting pants for the Nilfgaardian Guardsman armor and was pleasantly surprised when the Nilfgaardian Armor DLC came out, along with the awesome horse armor.
Also, CDPR is doing a wake-up call that other companies need to stop with their current DLC policy, for example the notorious horse armor, the start of all the little paid DLCs (which can't be considered expansions), first DLC CDPR released was a free horse armor