Halatali Hard came in patch 2.2, known for da bes raid and easily speed-runnable dungeons. (So easy they have since decided to plauge all future dungeons with gates to keep you from clearing them in 10 minutes.) When any tank does a mass pull in those dungeons all you can really do is spam Cure II and cooldowns and hope the tank is smart enough to manage his cooldowns too.

All that being said, that tank was an idiot if he actually left without Protect (which is like, free 18% mitigation?) and getting hit by the spike traps. After the first wipe, he should have paced himself and separated his pulls into 2 packs instead of 1. (And really, 2 pulls for the first room of Halatali Hard isnt even that much longer than just one.)