Please provided links, as after his rework his statistics started to decrease slowly, also the last straw was the across the board nerf to the ultimate really affected him the most as well.
Yes, her rework took a toll on him, but again that was when she was absurdly broken. If he is as great as many claim him to be, then he should be dominating now since Mercy was nerfed repeatedly, but that is not the case. Why? It’s because he is losing his value, and that is not because of Mercy.