He has no allegiance to OKC. Seattle picked him and then the franchise moved to OKC. No one, fucking no one has ever said " when I'm older I want to play in OKC". Don't forget this is not the first time he flirted with leaving. He almost left 4-5 years ago when he was a free agent. He already gave the team a second chance and instead of luring in a big name they let one go and brought in scrub players. I don't blame him. He's smart. He signed a 1 year deal. If he hates it in GS he'll still have 30 options next year with a max deal. He owes OKC fuck all. If anything they owe him for making them relevant.
I'm not saying he owes them, ala LeBron.
I'm just saying by the time a man is 27, as he is now, he likely has a network of friends, business, professional partners, side bitches and main bitches, kids, and others. Many part of his empire and personal life will remain in OKC.
If he's 30, he has a ring, and he has to decide on a new city, I think OKC will have a better than average chance because all of these connections he's made.
lebron didn't return to CLE because it was the best shot to win - he did it so babymama could raise kids with grandma, and other legacy/hometown reasons. Once a player has a ring, I think they make decisions based on life, more than on the game.
Everyone predicted Lebron this city or that.... I knew it was akron from his woman's tweets and other things, while they were still in the playoffs. I called it on getbig -Lebron back to CLE - before spurs beat their miami asses that year. It wasn't about "best chance to win" at that point.