I play a lot of Yasuo too, and I think a lot of the stupid Yasuo Hate Threads are garbage.
However, I tried this cheesing method against many of the mid lane champs except Lissandra, and it works extremely well. Top lane is, in my opinion, very weak for Yasuo so it might not work as well.
I have also been going Phantom Dancer + Cloak of Agility + Trinity Force + Vampiric Scepter, and it feels extremely strong and the Sheen damage + the Phage movement speed is very good while you have the lifesteal to make up the stuff you are missing from Warlord's Bloodlust. Yes, it costs a lot of gold, but so does Vi's Trinity Force and Shyvana's Bloodrazor into Titanic Hydra. Furthermore, you aren't missing any statistics such as armor penetration, attack speed, critical strike chance, and you get bonus statistics such as bonus damage from using your E ability, and the movement speed from Phage.
I just feel like the base damage should go down since that build I mentioned might become meta soon since Yassuo is also doing this, and the early damage from Yasuo makes him extremely snowbally just like Vi, so he might become an issue.