Again, how would you feel if it was you posted on a national for all your family/friends/whoever to see? Just because they're in a public role, doesn't mean they should be expected to put up with this shit.
Because Cheika was responsible for all that.

Your logic suggests it's fine for them to have a crack at him because Michael Clarke/Mitch Johnson made a poor decision.
Hey, maybe he should take the credit for the bogus drug accusations against Carter as well. I mean, there was some sledging in some lawn bowls between Aus and NZ so it's fair game.