Buffs that lower a hero’s skill floor will only make the said hero stronger in lower ranks. In higher ranks does their buffs not affect them much or at all.
But I’m glad to see they buffed McCree other than buffing his FtH.
And about Reaper, this may be an unpopular opinion, but I think Reaper is a hero who should never be meta, just like Mei and Bastion. (Told you it was an unpopular opinion.) I do want him to be a viable hero.