Well that's just a personal opinion of mine.
I'd prefer characters have some legacy attached to them then just be an on-the-moment what's popular in 20XX before whatever next popular thing overtakes it and the previous falls into obscurity.
Like Dovahkiin, despite my personal gripes with his game, did kickstart the whole "open-world" craze like no other. Same with Steve and Minecraft.
Tracer? Tracer's just Blizzard's take on the arena shooter genre, when they themselves have already pioneered the RTS genre and the MMO genre like no other franchise has ever even gotten close to doing.
If you want to go with an arena FPS rep, at this point, I'd rather take the Scout from TF2. Or hell, go even more old-school and pick up the Ranger from Quake.