Yes?
I said she performs well against squishy and hardcounters tank. Notice how performing well is not the equivalent of hard countering. Don't act like im arguing she does equally well against them both.
But ill counter your derailed argument.
Vayne most certainly does do more damage to squishies since they don't have armor to reduce her auto damage. She has bonus damage on her q and extra ad on her r, and her w has a MINIMUM meaning if someone has very little max hp it will have the potential to do a higher ratio.
She only dies faster to point and clicks....you hitting her with a skillshot has more to do with her ability to dodge than it does with your ability to land projectiles.
Only assassins can easily oneshot vayne, most mages are not instant / point and click and are too immobile to avoid her / chase her.
Fighters she can just E away as they gapclose onto her, and depending on the case they might end up being sitting ducks afterwards.
Juggernauts she completely ruins by knocking them back.