I think Near-Sight would be infinitely more useful than an Auto-Attack block on Teemo's Q
Not like his Q even counters anything anymore considering all the Tenacity and pure consistent BPS that has been shoved into the game, and at least this way you can screw up a carry by making sure they have 0 vision for a moment, not to mention it opens up screwing over abilities too by making enemies have no idea where their targets are.
His Q really is just used as another nuke spell for damage, the blind is just a joke that really doesn't do anything but give you a pitiful 1 second delay of the inevitable at the most unless you're playing against sponges that refused to get so much as some 