No yasuo in the lcs this year?

I remember hearing montecristo/jason talk about this in an LCK broadcast. With the new meta, wave-clear has become ridiculously important due to the limited number of characters who reliably have it and the long death timers making sieging ridiculously easy to do. Because of this, a bunch of popular characters from the summer (azir, yasuo) have fallen from grace whereas others (lux, viktor, ez, corki) have seen significantly more usage.