This is a fetish manga. Removing the giant boobs just does not make sense. It'd be like going into Monster Musume no iru Nichijou and asking to give human women more screentime, or removing the feet from Ashigei Shoujo Komura-san; even if it would draw in a larger audience, extend the life of the series, or make the story more coherent, if you removed the fetish element from the fetish manga, there'd be no point in making it.