I have no idea if the writing is worse in English, but I absolutely loved Nayuta's story. I was also coming off of CS4+Reverie+Kuro1 when I played it, though, and that's the nadir of Falcom's JP writing to be sure.
I should probably replay AA5 and AA6. My memory of those two games is much weaker than anything else in the series.
Nonsense. "Testing" is for when you're still guessing--and now, I have no need to guess. -- Agatha, Girl Genius