Also, that you can find a game with exclusive options doesn't mean that's necessarily a good idea either.
It all dependes how it's written. Difference is with either approach, when all LIs are available for both genders, a lot of more people get to enjoy those romaces. If romances are restricted, fewer people do.
That is why I am suggesting to rather add new companions which are not tied to a single one class. Because the existing options are extremely limited. If the existing ones would be made available, almost all current options would have to be made available, regardless of whether that fits into the character concept or not. I would prefer if there were several options, but every single option, for everyone.