I mean I'll admit it's been about two years, but I'm pretty sure the last time I played the Love Route for Azula after the revamp, it ended with her basically making you her "trophy husband" while she went out and about continuing to do all the same psychotic shit she did toward the beginning of the route.
Also, no, it's not *inherently* bad, but when you play both routes and the MC in the Slave routes is intentionally made to feel like an over-the-top "Shut the fuck up, *insert villain here* or I'll slap you with my dick", while the Love Route's MC is constantly being saved/failing at doing anything impressive/usually at best manages to be a sort-of equal... it's easy to tell where the favoritism is, and where the real power fantasy comes into play.