Reaper has always been pretty good - at least since his life steal change. People just kept the old mind set of ‘reaper sucks, better not try’ though - just like with Symmetra. Those that gave him a chance are doing just fine.
However, in this case Blizzard seems to listen exclusively to crybabies that just wanna pick a 1 star hero and instantly dominate without putting any effort into it. This of course would ripple through the game and require further significant changes to other heroes, like Orisa. It’s called power creep. Oh well small indie company can be forgiven for not knowing how not to power creep.