Most of them said they were attracted to him because of his nerdiness and because of the way he speaks, his manner of speech.

Neither of these things will increase a woman's social status by marrying a man exhibits them.

Ergo, not hypergamy.

You're misappropriating the term.

One woman even said she was attracted to the curates image he presents and that if she met him in person she probably wouldn't like him.

They're admitting they're attracted to a facade. That's not likely to elevate ones social or financial status either. It's more likely to get you screwed over.