A) Did you play the game when Valkyrie went live for the first time? It was stupidly overpowered, it really enhanced Mercy’s kit, just like the developers said/wanted?. But now, after many (required) nerfs (do I have to list them?), even though she can still fly, Valk is an invitation to Tactical Visor, High Noon, Widow/Hanzo shots, and now Torbjorn’s turret. If you get killed, there’s nothing your team can benefit from your ultimate. This happens with Valk only, no other support ultimate except Moira’s have this problem, but If Coalescence gets interrupted (then you were in a bad position) you already hit your allies with 140 hps, YES, 140 healing per second, so you’ve already healed (saved) some of them.
B) Even if its chained, times when your team is together don’t always happen, not becasue of communication, but for team mates required to counter or to deal with some other main targets. And even if they are all together, is this current version of the game, there is a lot of things happening in a team fight (buffs, debuffs, armor, shields, burst healing, stuns, hacks, knockbacks) for Valk to keep teammates alive. Single target beam with more healing output would have been so much better, and it would increase Mercy’s awareness at prioritizing targets.
C) The difference it makes is little, you still have the same HP, capable of being 1 shoted or killed with any massive damage output ultimate.
D) Serioulsy? First, if you do that (with 60hps or not) you are for sure letting one or more teammates die since 50-60 hps is not enough to heal through sustainded damage (this is what main healers do btw). Second, do you want to get reported? your angry teammates may want to report you. You can only feel free to do that if the teamfight is over and no other ally needs help, then you can chase that squishy trying to scape. However it doesn’t happen nowadays very often, because you or your teammates (more likely) are dead. Damage boost then? Nope, same thing happens, you have to prioritize healing because hps is too slow to have the time to dmg boost an dying team mate.
E) It means nothing, there’s nothing new. This is where she was 1 month ago. Same problems.
Useless? YES. Underpowered. It is not a game changing ultimate. Not engaging nor rewarding not impactful. Can’t compete with other support ultimates, want numbers? 300 burst healing Nano, 140 hps ‘s Coalescence, 750’s Sound barrier, Transcendence’s 300 healing per second, Rally’s 300 armor. To give you better data: Winston’s primary fire is 60 dps, the lowest in game, if a teammate is being attacked ONLY by Winston, he will never die o fully healed… now imagine the same scenario in a team fight not only with Winston attacking. Valk just can’t keep up.
I am a Ana main, 180+ hours (I’m very happy with this meta), 4 out of my top 5 most played heroes are supports, having 25+ with my least played support (Brigitte, she’s new) I’m also support main, and I can say Mercy needs more than some partial revert. Way more.