I mean, at the end of the day the worst you're ever going to see in base game is some covers moving around. Why should a romance that is unconventional by some people's standards be seen as automatically too mature?
This is kind of a side issue and I don't want to get too off topic, but...
In addition to gays and straights, there are also bisexuals/pansexuals and asexuals, and people who are transgender. Also, these things are considered by many to be a spectrum rather than an either/or thing. I really like how the game settings allow us to separate woohoo interest and romantic interest, to rep our Aro and Ace friends (or ourselves, if applicable!). I would love more nuance to represent demisexual or genderqueer Sims, however. Right now I'm setting my demi Sims as not interested in woohoo at all but exploring, which is... probably close enough, gameplay-wise, but I make a face at the idea of demisexuals "exploring" as opposed to being secure in their demi-ness.
The team is aware of how heavily gendered the game is, and this, sadly, impacts trans and genderqueer rep. As I said, they're aware and say they're working on it.
