so what?
It's not that I think that kids should watch porn, but it's something that sooner or later they'll have to deal with (have sex). I bet they were just a bunch of them and they generalized. Kids are curious, period. They should have proper sex ed.
It's not their fault really. I remember when we first got Internet access, we we're showing my grandpa' how to download satellite weather pictures, and when you yahooed (no google, haha) "satelite weather pictures" at least the first three hits were porn.
It would be worse if they were looking up how to make molotov cocktails or improve their homemade napalm recipe or whatever... No kid, or person for that matter, should deal with that ever.