I suspect if I had read a lot of cookie-cutter urban fantasy I would have gotten somewhat jaded about 1PL too, tbh. First person really does require a narrative voice that's at least somewhat distinctive (and personable.)

On the other hand I feel like I am more likely to bail out of bad first person quickly than out of bad third, so that may be *why* I haven't read that much cookie-cutter urban fantasy! (And I have read some really bad published 3PL stuff, too...)

And there are definitely stories where omniscient doesn't work. (There are ways to strike a midway point between omniscient and limited that can work really well, but they tend to be a) a lot harder to find and maintain, and b) have very few current examples out there to work from.)