I guess the McCree nerf had the unintended side effect of causing a rise in Tracers, but they still had to do something to stop him from melting tanks without breaking a sweat so it's not like they can undo the changes
So I came up with an idea to fix it: Give McCree a button that instantly kills all Tracers in the game, including the ones on your team, with a 1 second cooldown
It's perfect, everyone will be happy