I'm probably going to submit my
crt either tonight or tomorrow. Though I have one more proposal for it.
Should the Avatars have resistance to mind manipulation? Jet was able to fight off the Dai Li's brainwashing by Aang reminding him of his past. And since the Avatars have the past versions of themselves in their soul, it stands to reason that they could likely help them fight off the effects. They already resist madness manipulation on the level of the soul through much the same way, so it's not far-fetched at all.