...graves can also blind people (a better blind) and separate teams and whatnot.
Graves does not have a Blind. It just reduces vision range, it's not functionally a Blind.
Also worth noting, her AA reset means she has better burst than a lot of people give her credit for. In a given rotation, she'll get an extra auto-attack in which is an extra 1.0 AD ratio to tack in.
I feel like it's too soon for anyone to be making sweeping statements about Quinn like this. Let's at least wait for her first inevitable tweak. Her Passive and E need to be smoothed out some and we can remove the outliers (low win-rate from people knowing nothing about her/playing her because she's new, "free" wins from people not knowing how to play against her) with some more time.
Edit: @Top Quinn - I feel like she'll find a better spot top or mid. She gets to safely outrange many melees top and her skillset is tailored better for the 1v1 matchup. That and her ult's strength is letting her roam hard.