I think that's a little black-and-white. I don't know the circumstances so I'm not going to pick sides. But it could be fair to be frustrated if you think 1 player is getting away with things that others can't get away with. It's possible --and again, I'm not privy to any inside info so I'm absolutely not passing judgment here -- that Kruger made some star treatment promises to get Trae to come to OU that he might, in private, now admit were mistakes because of the double-standard it set for the other players.
Unless you have a lot more information than I do or most of us do, I don't think you can fairly say that Trae's teammates had bad attitudes because of how Trae was treated in comparison to the others.
What I think most of us can agree with is that it ended up being a bad mix that's probably in some ways nobody's fault and in some ways everyone's fault. It was a just a bad mix that could have worked out spectacularly but didn't. I doubt that any 1 or 2 people deserve all the blame entirely.