Yea, she and eventually Corki(though he already has a (small) nerf on pbe)
Maybe even aurelion, thoguh he's not popular enough even in proplay i guess.
And you know what?
Just like with Syndra, Orianna and Taliyah, those complaints are actually justifyed, atleast for high elo!
The rule of thumb is that if it's consistently used in proplay, it's probably broken, else they wouldn't use it. In proplay, you try to maximize your chances to win regardless off funfactor or other indivduel preferences(well, there are pocket picks, but any good player plays the meta picks on top of that). This means you use what objectively is the best option(well, it's not always clear to say 'objectively'), and if a champ consistently is used in proplay and performes well, that means it is objectively better than other options atm, aka OP.