ICC Warsong buff and trolls

Why is it possible for one disgruntled player or troll to repeatedly ruin a raid multiple times due to them not wanting the raid to succeed or simply just wanting to troll for the sake of it?
The ability to remove the 30% buff is given to every single raider meaning anyone can **** a raid over simply through talking to garrosh, can the NPC be removed so people can at least pug? or perhaps permission only given to the raid leader. For the past week EVERY raid has been trolled this way with people waiting up to 2 hours for multiple raid resets because of one person.