What do you hope to achieve with Vayne changes?
She still rushes IE/Statik. She still two shots out of stealth.
The cancerous build only started after the change to Q, and then amplified by the fact she can't be touched during her ult.
I can't understand why you stop stealth champs like Shaco (A champ almost purely designed for out of stealth damage) having huge opening combos "cause op no counterplay", but a ranged version (designed for sustained %Max HP true damage) who can re-enter stealth repeatedly is perfectly okay? I'm getting that right? Cool.
EDIT: I'm aware the Q crit change was reverted, but the initial implementation of it is what brought the IE/SS rush into the spotlight. Then came the stealth change and only after all of that was the crit removed. The problem wasn't the Tumble damage critting for 60, it was the combination of a champion able to enter and exit stealth as she pleases with very high burst due to itemization. Her current playstyle is more like any Assassin apart from maybe Zed, except for the huge part where she is ranged and deals high sustained damage that can't be counterbuilt because true damage max health.
Pick a fucking theme. Either high burst or tank shredder. I think I speak for the entire community when I say the combination of both is not healthy.