Sadly, I can understand this urge, as so many people were dissatisfied with the 'ships--even the people who shipped them! XD Luckily, romance can pretty much be self-contained for all the reasons you mentioned. However, I always feel that in a long fic, romance shouldn't be the sole focus if it can be helped.

Funny thing is, that list you put up there--those are my immediate signs to hit the 'back' button.

I...I don't get why someone would do that. If you're trying to give Azula a happy ending, and don't mention Ozai at all, and then throw in the detail that he offed himself some time ago...wtf, it's kinda character-raping to think that Azula wouldn't have reacted to that somewhat during the course of the story? I mean, Ozai was a HUGE part of her character, so...O_o