The actor who plays JZX in the show also has this hilarious quality of ... like .... you know those cats, the ones who stare vaguely past you like if they ignore you, you'll have the decency to go away or stop existing? That's JZX and it's kind of wonderful.

Mistakes are definitely made by many clans in the show as well -- the abuse of Wen prisoners is played more or less as it is in the show, and there's a lot of squabbling about leftover magical macguffins -- but, like, we didn't need a magical macguffin to start with! There's plenty of leftover human evil to go around.

I'm pretty sure that's how Lan Jingyi uses his guzheng.