I guess this would be the best place to put this

Hardly "the entire time". The bit with the otaku was only about 5 minutes, and then another 5-10 minutes talking about young Japanese men in a more generalized way as people who refuse to grow up.
It is a bit biased in that the men shown were extreme while the women interviewed seemed far more mainstream, but all in all the show is not about that but about Japan's aging population problem in general. The title "no sex please" is mostly a teaser.