this seems to imply "anime" is a single genre, but I assumed you're not that dense...was I wrong?
in order for that to make someone "dense," they would have had to have been told how it actually works, otherwise they aren't being dense, and they just didn't know. and since I have no interest in anime, and don't really talk to anyone who does, I honestly can say that no, you were not wrong
regardless, that isn't the point. ten shows of any genre would work just as well as sixty, so let's assume he watched six different genres of anime, ten episodes of each (and according to wikipedia, there are only five genres of it). still safe to assume at that point that anime isn't your thing