I liked your post because it's a good point, but otoh, had they given him the minutes he's showing he probably deserved, he wouldn't have been unhappy in the first place.
If you can't evaluate your own players correctly and as a result don't play a guy the minutes his talent warrants, you probably deserve the unhappy player and ultimately deserve to lose said player.
I'll never forget when it happened with Dale Ellis in Dallas. Dallas wouldn't play him, he's unhappy so they move him to Seattle and the next thing you know he's dropping 25 ppg and playing in All Star games.
We'll see what happens...Like in relationships there's a honeymoon phase with many nba players as well.
If you check his bball ref stats, you'll see he saw plenty of playing time. Now why has it changed now? Maybe because he's utilized in a more natural way, maybe he's more motivated, maybe he's got better spacing around him.
Denver tried the Jokic PF, Nurkic C combo and it was predictably horrible since Nurkic is too slow to play modern PFs and neither offers rim protection. Denver decided Jokic was the better talent and moved on. Maybe that trade was below market value, maybe it wasn't. We'll see.