Drawing kinky sex art featuring a My Little Pony and a grown-up dude is bad, because she's actually very vanilla and engaged to a different grown-up dude?

I feel like the write-up here could have made that part explicit, because like hell was I going to click on the link to view the MLP erotic fan-art, so when I first read it, I didn't realize the erotic fan-art was ALREADY of the human-on-pony variety. Although honestly I should have guessed.