Why doesn't anyone play Taliyah?
Since my return of playing league, I've played like more than 50 games so far and I have not seen Taliyah anywhere. Neither on streams in Twitch.
What's wrong with her?
All I have been seeing MOSTLY is

HAH what do you know, they're all assassins -_- typical.
EDIT: WOW I didn't expect this thread to be on the hot center! Hopefully Riot acknowledges this and maybe comment their thoughts about Taliyah as well.
and finish off with some combination of
depending on what you need.
just takes too much effort to play in order to have decent results. Unless you like her playstyle or her design in general, there's little reason to actually play her if you want to win. Her kit got busted up pretty badly on patch 6.14 with the Seismic Shove rework and Unraveled Earth gutting. 6.18 just put a bullet into her knees by removing the Q bonus damage on minions, thus removing the reason why pros even considered playing her.
Is pretty similar. Fills a similar role but with better wave clear worse roaming.
ult and E was something more reliable. I mean how the hell does she make "explosive rocks" anyway?