Garen's q avoiding Quinn's blind (Gameplay)

I heard that with teemo his q doesnt work against blind, but against quinn thats a whole different story. As if Garen isn't op enough his q is not blinded by quinn's valor shot which is ridiculous because the whole point of it is to give her a leg up, but then garen runs in qs leaving u with no escape es then rs. Is this supposed to be this way because if it is this is incredibly stupid.

1. Get Quinn and Garen
2. Use Quinns q on Garen
3. Garen qs and then proceeds to hit Quinn even though he is blinded