IMO, any player who criticizes another for taking a last second game winning shot, is not a good teamate.
Sure, it is always better if the ball goes in, but even the best players miss on occassion. Your teamates should support you in your efforts to get the win, and if you begrudge a player taking the last shot, you're really begrudgeing him every shot he takes in the game!
The only time the criticism is valid is if the player is consistently trying to make a difficult shot- forceing the issue, when another teamate has a better chance to make the shot or go to the line based on his position. It really is the coach's choice under most circumstances, and if it's a broken play, the team is happy if someone manages a good shot under the circumstances.
The objective is to win, not score the last points in a game. IMO, AI would like nothing better than to NOT have to worry about taking a last-second shot. He's on a team now that presents plenty of options- or will when they're at full strength. Not, only that, but because of his teamates, he will get more open looks and fewer double-teams than in Philly. It won't be up to him to score with shot-clock winding down, because his teamates won't choke pulling the trigger like his old crowd.
"Nene" and "melo" won't drop the ball or see it go out of bounds like Dalembert.