You’ll get no argument from me that the current version of Mercy is a bit of a chore and a mess, but to revert her I think isn’t really solving anything. Yes, she might become meaningful again, not have an ultimate ability that seems like a diluted standard ability and a standard unearned ability that seems like an ultimate ability, but it won’t solve the original reason for reworking her (albeit questionable in validity) - disheartening to play against.
Sure, she’s a bit disheartening to play as now, and there’s a good number on here I’m sure who will say she’s fine when they don’t actually main Mercy (e.g. out of motivation to not see her get any further changes unless they are nerfs). Some ironically do find her fun, but each to their own.
I don’t honestly find Valkyrie fun unless I go Battle Mercy, other than free flight it does everything I can virtually do as Mercy albeit with improved self-survival and a minor HP buff. It feels like semi-autopilot if I don’t go Battle Mercy. Teammates appear to often ask more about when resurrect is off cooldown and not to coordinate with the ultimate ability. I can’t recall a single time (since nerfs) that I’ve been asked about when or where to use Valkyrie, unlike many other ultimate abilities in the game.
On fire is still busted, but understandable in Mercy’s current state. The other reason for reworking Mercy was apparently due to ‘hide and res’, yet Mercy has to often do that today in order to successfully resurrect someone who might be near a fight (or to avoid snipers).
The rework ultimately is a failure, though officially and currently unacknowledged as one. The fact they aren’t doing more hero reworks I think is part of the reason, without admitting that a number of the other hero reworks have been a bit of a miss too. Torbjorn is perhaps the only truly reasonable one that I can think of.
There’s much they could still do to Mercy to improve her for a majority of players, both for those who like her current state (genuinely that is, those that still main her and say this) and those who don’t really like her current state. There’s been many ideas, not all of which appear overpowered and some quite reasonable, but all we get on the forum is very little in the way of discussion these days. The megathreads for Mercy which were forced upon us some time ago weren’t much help either sadly, with virtually no direct engagement with any comments.
Suffice to say something more needs to be done with Mercy, though a revert I don’t think is the right direction.