No company should be above questioning, no matter how good they've been in the past, and I love CDPR as much as the next guy. No one is accusing them of actually selling out. They're just saying there are few concerns. I think most of those are rooted in lack of concrete information and too much speculating, but there are a few facts about TW3 that could possibly lead to the PC version suffering.
First of all, this is the first time CDPR is developing for 3 platforms, concurrently. On top of that, they're a relatively inexperience developer, as a whole (especially on consoles), and don't have massive amounts of resources available to them like other AAA developers. No one doubts their intentions, but whether they can physically fulfill them is another matter. Their previous installments on PC have been good, but both needed post-release enhanced editions to really polish them up and push them up to another level. And what we've seen so far hasn't served to quash all doubts. It's not entirely unreasonable to question whether TW3 will truly be "a crowning achievement of the RPG genre", especially with these ridiculously high expectations.
As I've said many times before, it's too soon to be handing out judgement or flat out accusing them of neglecting the PC version. Let's wait and see more of the game & the final product before all of that. But there's nothing wrong with asking questions. I sincerely hope and believe that CDPR won't forget their roots, but then again, I've been around the gaming scene long enough to know nothing is truly infallible.