lol tons of other games have hitscan snipers with semi autos.
Battlefield games have falloff, but the funny thing is its only with long range scope. If you put on a holographic sight with no zoom on that same sniper rifle suddenly has no falloff and is completely hitscan regardless of range (in some of the bf games Ive played)
Actually a lot of overwatch heroes and abilities are influenced by other MOBA heroes.