Yeah, I don't buy that at all, at least not George. Pritchard didn't want to trade him in conference/division. I've not heard that LeBron's failure to commit had anything to do with Pritchard's decision on where to trade him until just now from you. Gilbert even let on that he's still pissed about them pulling out in the Altman press conference.
Butler situation is debatable, but if Kyrie truly has wanted out for a while, I'm guessing he's the one that told Butler not to come here (which again, Chicago shouldn't really care where he is traded to, they should be focused on getting the best return back for him, unless they also didn't want to deal him inside the division/conference).
These players did not have NTC's and could not dictate at all where they ended up. It's not like they could veto a trade to the Cavs if they Cavs were offering the kitchen sink for them (as Melo can do).