Yeah, going to be honest, this is the first step of Six as something other than a dream. Doubling down on the same stuff they're already made of doesn't seem like the best choice necessarily?
They've straight up said the Argent Vent was 'good stuff'. More importantly, it's known to have the effect of making people "More themselves".
Like, even if we assume that the Bloody Moon doesn't fool around (Like they did in the trial, muzzling Six when they let Shen Hu have his buddies), it's still... Feeling like it's wasting the opportunity I"d almost say? Half the point Six is going through this evolution in the first place is because they're trying to understand the world better, it feels like a step backward to go "But you should be more fey".
Argent Qi is a great supplement to most people, sort of by design. And for a 'First step', having a good foundation is never a wrong choice.