We recently had a few people come back to the game and reroll to raid 10 mans. Most of the people in our raid are undergeared, but we've been making good progress relative to gear. One of the issue that is constantly coming up is both our tanks getting wrecked. No matter how hard they are spam healed, they're dropping like flies on 90% of the fights. We're running a monk and warrior tank and I have no knowledge at all about what they could be doing wrong. Below are logs from just a few fights (don't have the ones from last week when we killed 10 or so bosses, but should have some more up today evening) :
Here are their armories:
Any help would be appreciated since I am completely lost here.