I've seen it a couple more times now...
Andre was definitely talking to the bench behind Neptune. The coach just happened to be there when he turned around to start talking.
FWIW, that player/bench talk happens all the time in every game. Maybe what he said crossed some sort of line, but chirping the opposing bench is not abnormal.
Still, he has to be careful going forward. Maybe just a Tyrese Martin stare is the way to go going forward. Then again, if we keep winning, he can get a tech every game for all i care.