As mentioned in the article, most of the videos being discussed don't contain violent or sexual content - and I can understand age restricting that material, since I suspect it was never targeted to children to begin with.

But, I don't believe "creepiness" alone a valid reason to restrict content to children, if it's adults, not children, who find the content upsetting. Unless there's evidence of actual harm being done, then it seems that this content is serving a legitimate market need for parents who want something to babysit their kids, but who don't actually care about its intellectual or educational content.

And I find it a bit odd, given how blatantly these videos seem to violate copyright, that Google hasn't banned them outright, particularly given Google's own unwillingness to even defend fair use of copyrighted material in reviews and parodies elsewhere.