You put it yourself here, that is inconsistent with the entire structure of the map. I think making the biggest highlight of the song a sudden and underwhelming 1/2 section then copypasting it into every difficulty just doesn't make sense for the mapset as a whole.
Yeah the whole map structure already uses density as emphasis/highlight to the song, mapping this section as 1/2 would do more harm than good to the overall representation and contrast of the song, I think it is a valid justification for the improvisation