Riot mentioned Quinn changes - but they haven't delivered. Now should be the time
I was looking through the Quinn PBE feedback thread, and saw Repertoir wrote, "To the players saying that her base play pattern feels bland now, I agree that there is some work to do on that front. The amount of damage coming from Q relative to passive feels off at the moment from what I can tell, and Skystrike in its somewhat vestigial form seems to be making things feel worse than if I'd actually removed it and put that power elsewhere."
Well, after all this time, Quinn is still fairly bland to play, with nothing being mentioned by Riot as to how they plan on mitigating that. After subsequent nerfs, hit kit is rather underloaded and she's not very fun to play. Also, with her Skystrike damage being nerfed to 0.4 of her total attack damage, I believe the time has come into removing it all together and putting the power elsewhere.