I’m going to be devil’s advocate, but I think Tracer is fine, at least on an intrinsic level. The philosophy to use her as a reference point for balance is a good one, from a game design perspective, so I think it would be ideal to leave her as unchanged as possible.
I think a lot of peoples’ frustration comes from the fact that there are inadequate counters for her at present, and Blizzard’s attempt at creating counters for her, while well-intended, have been a bit misguided. If there were a better way to deny her, like how Winston denies Genji, there’d be a lot less frustration.
The thing Tracer fears most is suddenly chewing loads of damage, but there’s no “safe” way to do that at present, or at least not with one hero. There’s Junkrat’s mine, and Rein’s hammer, for example, but those heroes in particular don’t have a good way to follow up on that damage. Soldier 76 isn’t bad in principle, but he needs to land a direct with his Helix, which isn’t “safe” enough.
I know Overwatch is a team game, but in other FPS games, you dedicate multiple flankers to one target, not multiple defenders against one flanker. It’s a bit backwards.
(By “safe”, I mean easy and dependable damage. Something like McCree has to hit multiple directs with a single-point hitscan, which isn’t as safe as just throwing an AoE mine down.)
I hope Hero 28 is something that can effectively serve this function, i.e. having safe close range damage that can be easily followed up, while not stepping on the toes of ranged heroes, tanks, and healers.