He got his chance when Snyder was sidelined, and he got his chance again when Yao was out. To give him more chance will be a slap in the face of guys like Juwan, Hayes, Head, and Snyder. Again, as a role player, you will have to learn to play OUT your star players instead of waiting for plays called for you. As a role player, you have to earn your PT in practice and in game. He could do neither.
Why should he get any more special treatment? Just to ruin the good chemistry they are having now? Or to piss off your hardworking star players and loyal and hardworking role players?
Bonzi has talent, but never really fully utilized that. As a career 12-5 guy, I expect a lot more from him. Last year's playoff spark was a nice performance under the right situation. To have a fixed role in a playoff team like Rockets, you have to bring more to the table, NOW.
That's how I see the situation. As for the mis-conception that JVG doesn't know how to play him. Check Spree, he was even a more trouble guy, but he performed greatly under JVG, once he was sold in JVG's system. As a role player, you have to ready to do the dirty job first, and wait for your opportunity to bloosm, instead of hoping someone utilizing your "full" skills. Team first, super star second, star players third, solid role players like Shane fourth. Bonzi? It sucks to be him, if he still doesn't know what is wrong with him.