"It is right that Piandao would see through the Aang Gang immediately,
although this does suggest that their deception about Aang’s death is
less effective than they believe."

I like to think of them as more like the French Resistance, but I get your point.

It had to be said, even if everyone did!

I wonder if the Bates/Anna marriage is going to prove useful while he's on trial:  at the time wives couldn't be compelled (or maybe weren't allowed) to testify against their husbands.  I also wonder if O'Brien will be called to testify—maybe she'll redeem herself a little further on the stand, though I can't remember…