I don’t think the question should lie in a gay-straight context. As they mention some, or perhaps most, same sex pairing is for benefits outside of sex. In fact they don’t seem to mention sex at all. Looking at their definition of things it appears that you could say two human male roommates who do get an apartment together, share bills and food are gay when they obviously are not.
Agree. Most long time “lesbian” couples I’ve known are more androgenous companions sharing resources, supporting one another’s survival it seems.
Many times beginning on the gay path due to systematic rejection from males (chastity bono) or traumatic early abuse by a male(s. I do not believe at all that most lesbians are biochemically homosexual. They are psychologically single-gender cooperative.
These lesbian setups are more about support, loyalty. Much, much less about sex.
"I think he's talking about us, Bert"