Honestly, I feel like the whole appeal of a 'not so meet cute' is how it grounds things right away. It's not about fate or magic; it starts with something awkward, or annoying, or even a bit humiliating. You're not getting swept off your feet, you're tripping over your own laces. That immediate lack of polish forces the characters to be real in a way a perfect first meeting never could. The tension comes from having to overcome a genuine bad impression, which makes every little shift in their dynamic later on feel earned.
Take something like 'The Hating Game'—that elevator scene is pure mutual annoyance. They're not secretly fascinated, they're just... irritated. Watching that animosity slowly unravel into something else is way more satisfying than watching two people instantly click. It gives the relationship a foundation built on actually knowing the worst of each other first, which feels sturdier to me. The 'meet cute' is a promise of possibility, but the 'not so meet cute' is a record of obstacles already cleared.
It also opens the door for so many fun, specific dynamics. Maybe one witnessed the other having a full-on meltdown at the post office, or they were rival bidders on the same ugly vase at an auction. That shared, slightly cringe-worthy history becomes a private joke later, a piece of intimacy that's wholly theirs. The uniqueness is in that flawed, human starting line—it promises a story less about destiny and more about choice.