For you and anyone else moaning about this, there is absolutely no reason to not set up a Japanese account for yourself.
Yep, especially when the game can put the text in English. Not that hard to set up an account, just look it up real quick. There are just times when Japan just wants to be all exclusive with a demo (FFXV, GR2 (At first), etc., and for those who just can't wait, having that account on hand is helpful.