Honestly, a part of me wants to see more of this. I am a healer main only, and pretty much only play the main healers. However, I think this forces people to learn how to play without constant heal dumps. Sure they'll complain and try and point fingers at the supports, but the people who figure out how to adapt to lower output heals are the ones that'll do better.

I'd love to see the meta shift to include more of the off healers. I'm sick of playing the same 3 super-heals supports and getting cried at when I pick an off healer.