The character was certainly ‘earnest’ - with no room for a sense of humour at all. Perhaps AS was channelling that in her interviews? Ann Lee wasn’t shown to be unpleasant in any way, just driven.
But it is a musical! Of sorts. Interestingly one of the reviews notes that the film was 75% dance. And AS performs some of the songs.
I’d go for the visual spectacle - and a sometimes thrilling score.