Okay, after thinking about it, the message could be interpreted that it is okay embrace both masculine and feminine traits. The "non-binary" character in question is part of a species that chooses what gender they are at 13. And it's just about the kids placing bets on what gender it will choose, and in the end it decided not to tell them what gender it choose because it got annoyed. It is an alien, so anything goes, but of course in $CURRENT_YEAR it would be interpreted as being about non-binary acceptance.
And yes, I'm well aware that Mr. Enter is one of the most hated cartoon reviewers on YouTube if not THE most hated. I just gained a little bit more respect for him in the past couple of years because he did make some videos criticizing wokeness in media.