I didn't know the main girl being a virgin was such a hot topic. Anyway, I don't think that's information that should just be presented out of the blue. It should come up naturally through the course of the game when MC and her are approaching getting intimate, either right before it happens or in a conversation where she asks to take things slow because she's a virgin. I was curious about it, too, which is why I shook my head when MC could so easily presume she's not a virgin just by touching her. That'd be a dumb way to reveal she's not a virgin because the presence of a hymen is not the only indication of a virgin. Lots of girls "lose" their hymens (it's actually more accurate to say their hymens get stretched) before having sex, such as stretching it with use of toys/fingers, doing sports such as gymnastics, or even accidents when they fall on their tail bones (like a friend I know whose hymen got ruptured when she fell off a horse).
But after seeing the dev's reply, I feel that line was more of a troll than anything (seeing as you only see the line during a game over).
TBH how we define what a virgin even is?
In my book if a girl is penetrated in any way, oral, vaginal or anally, be it a toy, a dildo or an actual penis she's no longer a virgin.
Keep in mind why a girl being a virgin is even a thing, it's about purity, it's about ensuring the girl is not promiscuous. So if a girl is sexually active, it doesn't even fucking matter if her hymen is intact.
The ironic part of all of this that men are hardwired to look out for purity because it helps ensuring paternity, but on top of that promiscuity in women leads them to anxiety and depression.
Sadly, most of them don't realize that until too late, so they party and sleep around in their early twenties, but when they start approaching 30 reality comes knocking and they start to go crazy.