Yeah, he used to not need LoS. Fire and forget.
That, along with the Symmetra 50 shields was busted on characters like Tracer and Genji, a backline harasser that also self sustains forever.
OK, I could see not needing LoS as a problem. Just permanently buff a dude or take someone out of the fight forever. That's still no excuse for his lack of health though. If you nerf someone that hard there should be at least a tiny buff to compensate.
Symmetra giving out 25 point shields seems fine as well. I just wish she wasn't garbage in most modes, because she only works on defense and on certain maps.