"they/them x iel/ielle" really just means "a heterosexual couple"
I wonder if this actually is a meta-art project of upmarketing a high-net-worth lifestyle (look at me, I live on a boat!) to a far left wing audience. Just need a vague manifesto ala https://xkcd.com/451/ and you're halfway there.
Great idea. I shall someday write that.-
Question: how is it helpful for you to label them as a straight couple? Why would it matter to you? Why is adding the "straight" qualifier better than just leaving it as "they're a couple"?