Tank: Why aren't you healing me?
Healer: Cause you're standing right here healthy, oh WAIT! Where'd you go and why are you almost dead?
This is a simplification of course. While it's true, it's nowhere near the full extent of how bad it really is.
Cast a stoneskin on everyone..
/wait 40
Oh look, there it is!
Cast Protect
/wait 40
Yup! but too late, now I have agro!
Cast Regen
/wait 40
It expired before it showed up, or it just never hit. Which doesn't matter. Your tank is gonna die, and you don't even know it.
Cast Cure II cause nothing else is working .... nope ... health bar didn't move..... Oh wait .... it went down more.
FFS!!!! Benediction! Since there's no other recourse.
This is unplayable as it stands.
All I have to say.