Of course not, Mercy had the most OP ULT in the game by far. Literally the entire meta revolved around mercy because of how powerful her ULT was. Not only could it res an entire team, but it basically cancelled all the ULTs the enemy team used during the team fight before mercy pressed Q from whatever closet/hidey hole she was in.
Mercy’s OP ULT molded the entire meta around her. DPS were forced to play hide & seek to find her, because ultimately team fights would come down to which mercy died first. No hero should have an ULT so powerful that the entire meta revolves around killing one specific hero otherwise the entire team fight is for naught.
The mercy fanbase may not have wanted the rework, but the game – and everyone else – needed it for the game to be balanced.