Let’s not forget that on the Day of Black Sun, Sokka was the one in charge and Azula was no idiot Azula knew that.
When Aang, Sokka, and Toph all confronted Azula, she proceeded to make them chase her and waste their time. Azula is not only talented, she’s sly and smart as hell. WHO WAS THE ONE WHO SAW THROUGH THAT BS CHASE?
NOT ONLY THAT
but after Sokka explains to the Gaang that Azula is just baiting them, Azula actually verbally attacks Sokka. Not through fighting, but through words, knowing not only that an intelligent person like him could only be brought down with emotions BUT that Sokka was the leader and if she could get him the stay, Aang and Toph would follow his lead.
Azula knew Sokka was their strength and took him down. WOULD SHE DO THAT IF HE WASNT A SIGNIFICANT THREAT TO HER!!??!
No. She wouldn’t waste her time and energy on someone she didn’t think was capable of actually getting in her way.
WHEN SHE GETS HER FIREBENDING BACK SHE HAS THE OPTION OF ATTACKING BADASS METAL BENDING TOPH AND THE FUCKING AVATAR
WHO DOES SHE ATTACK?!?!
Azula never underestimated the power of non benders especially an intelligent one like Sokka. Sokka was a huge threat to fucking Azula on multiple occasions.