This is tight and it's stupid.
Fights rarely have the same # of targets through the entirety of the fight. Fights change, fluctuate, your assignment changes. We'll have to weigh the % of a fight we're fighting single target, or two, or more.
This is just not fun, I don't know how much longer I can raid as a mage, or how much longer my raid group will want to tolerate mages changing every patch. This isn't balancing, it's madness.