I think it's because Hashmal in particular is endless AOEs. I RDM during this fight (trying for dat caster body) and it's soul crushing to see someone raise right when he's doing an AOE, have them complete an action that isn't a self cure of some kind, and then immediately die again. I got in the habit of tossing a cure to anyone I raised even though I'm not a healer.

Dodging the half-arena swipe of doom forced me to start hanging around the east-west axis at all times when not actively dodging. This helped quite a bit.