One thing I like about yuri is that it can throw more twists into the basic rom-com narrative arc. (For whatever reasons, in recent years I’ve moved almost entirely away from stories, movies, TV, etc. in which people are killed, shot, tortured, or things blow up, especially ones where women are killed, etc.). Since, in a het-normative world, we (or the characters) don’t always start with the expectation of romantic involvement between the characters, there are a few more possible turns/paths before we get to plot resolution.
It’s similar to one reason I like Kdrama rom-coms—it’s not the het/non-het aspect, it’s that often the tsundere chaebol protagonists are so emotionally oblivious that they have no clue why they suddenly start going doki-doki in the presence of some obviously “unsuitable” partner.
In US stories, the initial presence of romantic attraction is often signaled by the principals playing tongue hockey and having sex up against a wall. So where do you go from there?