Don't be a jerk.
Adn as an aside, Cousins was pulled in the first quarter after going 0-5 with this being the final sequence:
7:01 DeMarcus Cousins misses 20-foot jumper
7:01 Carlos Boozer defensive rebound
6:54 Derrick Rose makes 21-foot two point shot
6:35 Marcus Thornton misses 17-foot jumper
6:35 DeMarcus Cousins offensive rebound
6:33 DeMarcus Cousins misses layup
6:31 Carlos Boozer defensive rebound
6:13 DeMarcus Cousins misses layup
6:13 DeMarcus Cousins offensive rebound
6:11 DeMarcus Cousins offensive rebound
6:11 DeMarcus Cousins misses layup
So basically missing 4 shots, including 3 layups, in 50 seconds with us struggling. Did he have to come out? No. But it wasn't a totally irrational decision. He was a little loose and frazzled.
And while I generally agree that Cousins needs to play every minute we can milk out of him, of course the obvious point can also be made that if he fouled out anyway, then the lack of first half minutes (actually got more than he did second half) did not cheat him of any minutes overall. If he's only going to give you 26 min a night, might as well try to make them minutes while he's going well.