the only op thing about him during that time was how quick he could get ult. if they were to significantly nerf the ult charge, genji wouldve been fine. people found it op in terms of this during that time:
Genji base kit buffs made him from below average to average/good. Then ult BY ITSELF without being touched turned it from average to good (good to op with the commonality of dmg boosted blade)
EDIT: From what ive seen, people who claim genji to be op RIGHT NOW is usually their own personal issue of not hitting mobile targets. Since mobility itself used in the right hands is literally a counter to the lower elo players. And what annoys me is that i want my genji to be better in mid and higher ranks instead of being blade bot boy to be somewhat useful for 5% of the game and 95% of the game to play farming simulator. But being told that hes op and broken and deserves more nerfs ruins the mood for the rest of us when they cant clearly see the whole picture of genji’s state honestly…