You have a manaward, and the rest should sit on the shoulders of the team mitigating and shielding enough to protect the weakest members. Healers are also left in the same position with the same defense stats as well after all. If anything it's RDM that's left in the dust with nothing.

I like that kind of differences between roles and jobs actually. I'm not thrilled with the idea to make everyone the same when it comes to it and perhaps magical raid wides should hit non casters harder than they do (casters have more magical defense but less HP which ends up in similar results across all roles). The problem is that the current battle content doesn't take advantage of it.