Vayne and participant request

Greetings,

First of all, I am currently conducting research regarding e-sports fandom and Psychological health. I would really appreciate more participants as I have a deadline looming! It takes around 10 minutes to complete (link is above).

Now, Vayne.. Piglet played her yesterday, but it didn't go so well (though not because he was playing her poorly). In the current meta, where tankiness (and particularly health stacking) seems to be the way to go, do you guys have any opinions on why we haven't seen much Vayne? Kogmaw has been more popular as a tank killer because of his range but he is also much more easy to lock down than Vayne, particularly with champs like Hecarim being popular. Does anyone think we will see her today? And if we do, do you think she can be effective?