Let me say this, as an aplspec schizospec asocial who is sometimes alloace:
Aplatonic people are allowed to be alloromantic no matter what. People are allowed to only want romantic partners and no nonromantic friends. Yeah, it's said to fit the amatonormative standard, but platonormativity isn't just a concept you happen to find funny, it's real.
Aplatonicism may have started within arospec community, but it was also started as related to neurodivergence and asociality, which some dismiss and think schizoid people can't be really romantic. Which is unrealistic and manicomial.
Edit: apparently who coined aplatonic is alloace, according to people in the notes.
Additional comment: romantic love and friendship concepts vary across cultures too. Where I live acquaintances are not friends, they are just social contacts.