[theaetatus]

No-one is saying which race you HAVE to be or even basing decisions on the hardest things in game, simply that if you're min/maxing (what this question is all about) you should min/max for difficult situations, i.e. being hit by multiple or hard-hitting mobs for whatever reason (breaking camps, root breaks, trains, difficult solo mobs), not for easy situations (being able to cast 1 more Talisman of Kragg every 10 minutes while buffing a raid).