He shit on the reader, because they shit on him when he made his serious manga „Me And The Devil Blues“. That one got barely any recogniton/sales so he just got mad and made a manga (Prison School) with ridiculous over-the-top fanservice. The entire manga was a trolling to the industry, including the ending. And people still think, the author was serious in writing that manga. ?
And I, for one, love him for that. Stupid readers only read worthless fanservice shit (and goddamn Isekai), so his trolling was legendary in my book.
Given the constant ass groping and latex suit, i'm almost afraid to guess what will the "raw" in "raw hero" mean. Undoubtedly it will be another sickening fetish. Whatever puts money on the table, eh?