>>14251852The chapter was pretty specific about it applying to humans from the village. Alice, Byakuren, etc. are exempt because they're not only non-residents, but because they turned at some point in the past. In Byakuren's case, ot was before Gensokyo was even founded.
Sakuya wouldn't count. Marisa *may* not count because she cut ties with her home. It's a red flag for Kosuzu, though, since FS is all about her straddling the line and willingly playing with dangerous forces. It's a tease.
It doesn't really matter that he wasn't advertising it. It can't be guaranteed that word wouldn't get out among the villagers.