Graves gameplay bug

so i discovered in urf today, that graves auto attacks can hit you despite him being blinded by teemo. ive yet to test whether this interaction works for all blinds, like another graves smokescreen, or blinds in general, but i thought i should bring it to your attention. cause thats broken if he ignores all blinds. i mean i know he has a shotgun with a spread to it, but i dont feel he should ignore an in game m=echanic that applies to all champs except for him. have a good day. :D