This does not apply in general. A lot of things in the Japanese society are done in old, even arcane ways just because they always have been done like that. The society is not built on bowing before change but on to reach some kind of harmony. Changes might be accepted eventually, but getting there is the hard part.

It's true it is not a core concept for them to change instantly, but the slow evolution of habits worked very well for them.

Arcane ways are not necessarily bad, but if they couldn't detach from them in the face of a better alternative, I'd be surprised.