The language says what it says, in multiple ways.No, "imperfections in the disguise" is stuff like getting the eye color wrong, or having an arm being visible when you are imitating someone armless. It's not "fooling all the senses, beyond 5 basic ones".
Also, I'd like to point out that if sight can see through BMI, then pretty much everyone who we really want this charm for will be able to see through it.
First it says its a perfect illusion, so you dont get details wrong.
Then it says no imperfections, so if for example, a blind Exalt makes a disguise, there's no mistakes made.
The intent seems pretty clear.
Its a perfect effect. You dont get to ruleslawyer around it by claiming that this new person has extra senses that the Exalt cant possibly have known about; Exalted magic is bullshit like that.
Thats not true.Also, I'd like to point out that if sight can see through BMI, then pretty much everyone who we really want this charm for will be able to see through it.
Literally everytime people open the Sight they risk the equivalent of SAN damage, and they never forget what they saw. Dresden and the Gatekeeper were still flinching years later in Cold Days due to things they saw with the Sight earlier in their careers. And the Sight is a wizard exclusive, one of the things that make wizards so scary in-setting.
Similar effects in the supernatural appear to be deity-tier effects or greater.
Gard doesnt appear to have the Sight in canon, and neither does Bob.
Lash did not have it in canon, and does not have it in this quest; she has something similar but weaker.
None of the ghosts in Ghost Story had it. Goodman Grey the half-naagloshii did not have it.
None of the fomor sorcerers appeared to have it; Mag wouldnt have gotten punked multiple times if he did.
The Leanansidhe obviously didnt have it, else the whole problem with the athame would not have happened.
I dont know if Shagnasty had it. Or if the Fallen do. Or if Dragons do. No data.