It’s also based on Paul’s ramblings, so I’m not entirely clear how you get from the biblical text to the official Catholic doctrine.

TeChNiCaLlY, under Catholic doctrine, being sexually attracted to or being in love romantically with someone of the same sex haven’t ever been a sin. Just having sex with them is. What’s new is that they are now willing to bless your sexless non-marriage homo life partnership. It’s simultaneously useless to any gay Catholics, and a huge middle finger to the more conservative side of the church.