Again, why are we even talking about the R7+ nerfs in relation to raids?
Very few folks run R7+ raids, and those that do are unlikely to be melee because a soul stone does zero DPS.
It's entirely arguable that casters already enjoy a more beneficial time in high R raids than melee. Because melee die a lot.
Meanwhile, ranged toons look on at these same arguements in different threads time and again*, and laugh up their sleeves.
If you want to be competitive in the toughest content in this game right now, best bin your wands and your chibs all, and go get yourself a couple of Uzi's. That's where the real action is folks.

Now, could someone please cue the Beegees, Staying Alive? I don't got the techie skills.
* And yes, the irony is I'm doing it too.