If Bungie had been from day one punishing exploiting with temp bans / perma bans, then yes they should take action here. But Bungie did not hand out any temp or perma bans for all the cheese that went on in VoG, guessing because in the grand scheme of things it means pretty much zip. Bungie have learned one lesson though, the delay on Hard Crota raid release was clearly done so they could see just exactly what would need fixing, so their would be some achievement in defeating the hard raid. Easiest fix for Crota ? add one mob that spawns after crota has been kneeling longer than the time limit, that is immune to all damage types and will wtfpwn the person trying to melee hit crota, by spamming huge aoe one hit shots targeted on crota.