The looser structure and lack of an overall plan actually made the show better imo. I didn't want ATLA pt. 2.

You do know that Aang too was selfish, unprofessional and spoiled? In the first few episodes he's literally just shirking his responsibilities. Korra on the other hand wants to help and do her duty as the Avatar when we first see her.

They make it clear that Korra was sheltered due to the threat of the Red Lotus. That's why she's so headstrong and overconfident - she hasn't seen the real world until the story begins.

Korra was incredibly talented with the more physical elements because her personality is headstrong.

Aang indirectly caused the equalist movement by letting Yakone off lightly, who then sought revenge through his children. He also indirectly caused the formation of the Red Lotus by making the White Lotus a more public organisation.

Aang wasn't perfect. Korra isn't either. Get over it. It's like everyone who posts this sorta stuff hasn't actually paid attention to the show.