Do you guys understand how does 50% leech in DOTA or world of warcraft mean?
Reaper is basically the third tank, Reaper means no Roadhog no Reinhart. You can not beat Reaper as Genji or Tracer or Mecree if Reaper get healed. Actually Reaper wins more than 70% solo fight, and he does great team work, any of his ability has great efficiency and practicability.
The reason he is not been picked a lot before, because he is not an attractive hero, he is not very good for stream and show-off videos. If you play reaper on a stream, some people may think you are skillless, Now people pick him because we have to, he is too overpower.