Yea I was kind of thinking that too, but there's still stuff like Widowmaker having good mid ranged ability with her rifle and a sniper, which I think is fair to assume is a headshot kill, at least. Generally people with good aim in FPS games become untouchable with a sniper, and she looks like she has good mid range fighting with the rifle, mobility with her hook shot, etc.
There's also Hanzos ult, where it's pretty disappointing if it does no damage, since it's so visually impressive. I guess they could manage the projectile speed and cooldown, but it feels like it might invalidate turret or defense strategies. I guess we'll see when it comes out