The fact that the last time other people found a way to kill a raid boss other then intended they were suspended < or banned I don't remember > I'll grant that Patchwerk is really a nothing boss anymore and could honestly be dropped by a small party on 25 man but still. Blizzard tend to get a little touchy when someone exploits the mechanics of the game < whether good intentions or not > and over React.
Personally I see nothing wrong with it, seeing it took so damned long and it's doubtful you'd be farming him I think it was a hell of a fight.