I wouldn’t mind a Mercy rework. At the same time, it would take time and energy away from the dev team to fix a hero that is probably not worth fixing at this point. Mercy already received one major overhaul and no matter what changes they make, people will be unhappy somehow. Kind of an unfortunate situation. Mercy mains can always take solace in knowing that so long as Bastion is in the game, Mercy won’t be the worst hero in OW.
I agree that there are other heroes more in need of changes than Mercy at this time