Speaking from the experiences I made in my circles/culture/language I think the word "bitcoin" is just easier to use and more well known already.

If I tell a nocoiner about a "Satoshi" they usually haven't heard of it before, and it feels kind of weird because its the name of a "Person" rather than a neutral thing. Sounding somewhat Asian makes it even worse for acceptance with more traditional folks as it feels a bit foreign.

Just my vibes, I don't think this will get changed tbh as its years too late, but it would be nice imo.