People are getting way to upset over leaving after 1 boss. Prior to me doing heroic's on my alt with pug groups, when i still needed normals, people use to come and go just about every boss. Had quick, solid groups and same thing, had crap groups and people would leave even faster. Face facts, pugs generally break apart anyhow after 1 wipe, hell, I was in some 25 man pug on another alt i have that and we get to sha, the one boss i actually needed and the raidlead, gives the dumbest strat i ever seen and of course, we wipe!!! So 75% of the raid leave and im stuck with this crappy lockout that 99% of pugs dont get stuck on, cause the raidlead was a complete tard.
My point is, who cares?? People come and go all the time in pug grp's. In lfr/flex/normal, i could care less about who comes and goes every boss. Now when im in a heroic pug or some guild group, people don't generally leave unless the grp is complete crap or it's the end of the run. I don't get why so many people are butt hurt over it, don't even tell me that none of you have ever left or people have not come and gone in a normal pug grp? Give the guy a break/ Op, you stated the grp was bad anyhow, i personally would have left if i felt, i would be there forever and no chance of killing garrosh anyhow.