Riot, what a shame.
It's a shame that you can buff all these AD items and nerf all these AP items and think I can still lane as Leblanc versus a Yasuo at all in Platinum and higher. Non-Leblanc players may not understand or sympathize with my concerns, but most everyone knows how much more pressure Yasuo has over you when you're a mage, period. And this patch just made that worse.
TL;DR
Yasuo is imbalanced, and it's a shame he's being allowed to be so.