I mean, it's really not like she's busted to the point where she needs a significant nerf, and she kinda teeters around meta shit and being just slightly ridiculous. Damage nerf is def not something I would put on the table for her, nerfing that would ruin quite a bit of her and really punish the people with the mechanics to make her work. Tweaking something around pulse bomb is easy and won't hurt her that much. Small blink nerfs are kinda meh too but whatever.
The really hard thing about balancing Tracer is the mechanics needed to push her into busted territory is beyond most players, even GMs. Shit's hard. You can make her like Strong tier, but busted is not easy. It's nice having a character that actually rewards you like that for putting in the effort. When I played Tracer constantly and was destroying in in-house, my arms would legit get sore from flinging my mouse around for hours ;~;