Why people believe that Yasuo is a counter to Vladimir?

I am a main Vladimir and I must say, it is the complete opposite, Yasuo is countered by Vlad. And I will prove that:

1. http://champion.gg/matchup/Vladimir/Yasuo/Middle Vladimir has a 54.16% winrate against Yasuo in middle lane. Yasuo actually has a 54.6% winrate against Vlad in the top lane, but that's because Vlad is more commonly used as a top laner, while generally only Vlad mains play him at mid lane. Also, top lane is a longer lane that greatly favors all-ins during the early game. It is also the easiest lane to gank.
2. Instead of starting or against Yasuo, you must start + 5 pots. This way, you can whitstand Yasuo's attempts to all-in and will also outsustain him because it is likely that he will start with only one pot, while you have five.
3. Yasuo cannot windwall Vladimir's Q. At least not the damage portion, but the windwall can actually prevent the healing particle from returning to Vlad. This is not a big deal during the early game though, as Vlad has poor sustain early anyway.
4. It is suggested to use movement speed quintessences. This way, if Yasuo tries to all-in you during the early game, you have a better chance to escape.
5. Yasuo can opt to rush and negate Vlad's damage during the early game. But this means that Yasuo will have his powerspike delayed because Hexdrinker has no crit or attack speed.
6. If Yasuo tries to hit the third Q (tornado) Vladimir can pool it.
7. Yasuo can only 1x1 Vlad late game, and only if he manages to land his Tornado.
8. Yasuo's mobility means that he can dodge most skillshots, making him a frustrating opponent for most mages. But since Vladimir's spells are all targeted or point-blank, Yasuo cannot dodge them.

Overall, Yasuo can't beat Vladimir if he knows what he is doing. Maybe Yasuo can beat a Vladimir that is inexperienced with that matchup. I have plenty of games with Vladimir, though, and I've came to the conclusion that without jungle intervention, a good Vlad will most of time beat Yasuo. You are free to contest this and say how Yasuo can beat Vlad, but please, accusing others of not playing that matchup or saying "I am not even going to argue" is not something that contributes to a healthy discussion.

Btw, this is my actual profile: http://matchhistory.br.leagueoflegends.com/pt/#match-history/BR1/201721804?champion=8 As I said, I have plenty of games with him.