i'm not sure what alternate reality you live in, but there has never been any speculation by anyone reputable that aaron rodgers is a coke user. you do realize that nfl players are routinely tested for drug use, don't you?
anyway, looking back on all this, it is easy to see that murphy's comment triggered rodgers. now, whether or not you want to contend that rodgers should have been able to brush that comment off just like he brushes off the comments of fans that don't like him (like you), the fact remains that a competent manager understands that it is not a good idea to piss off your best and most important team member. murphy has said some truly idiotic things over the past couple years, and that was clearly one of them. he lit the fuse.