They should be reverting Mercy to have Mass Revive again now builders are done. Or removing mass revive and changing her kit like I suggest in this post:
It’s about time that Mercy gets addressed after her unwanted rework of over a year ago. She’s in a really bad position right now and the arguments against mass revive (that it was somehow OP) have been debunked over and over again.
It’s Mercy’s time to be fixed. And actually fixed.