>/vp/ knows that numelgon is too feminine to be male
>/vp/ is preparing themselves for ash's female numelgon, and are learning to accept the fact that her species and herself are only female

This is Ash's Numelgon.

She is female like all Numelgon. She is extremely feminine like all Numelgon, and everyone portrays her and her whole species as a female. Nobody can even bear the sight of a male one if it ever existed.

It's all for the best really. If she was confused about her gender, everyone would be raging. Thankfully the director is based, and isn't a total fucking idiot. He sees Numelgon as a female, so he's interpreted this into the anime. It's a great idea really.