Now I understand people want to believe that pokémon like Gardevoir and Lopunny are female only due to their extreme feminine appearance… but Goodra seems like any regular Pokémon that can be either gender to me.

I mean, just because it's cutesy doesn't mean it's female. The baby Pokémon, for example, have a 7:1 ratio being male, despite like 80% of them being all cute and stuff. Same goes for Eevee.

Saying that Goodra is female only because it's "cute" is like saying Hydreigon should be male only because it's "vicious".

Let's not forget that some real animal species have the female being all savage (e.g. lionesses), or the male being all alluring (e.g. birds-of-paradise).