But Big Comic Spirits (who publish the website Stretch is on) is a seinen magazine. I also found a funny interview with Shou where they asked him for advice on what stretching a woman who wears high heels regularly should do, and where he got his pseudonym 作者/アキリ from. It's from a science fiction book by Greg Egan, not sure which one as Google Translate punted on it. They did not ask him about his previous works like Japanese Preteen Suite.
do you have the link to the interview?
also, I wouldn't be surprised if after this series wraps up, Shou-san released one or two after stories/epilogues where the Yuri is more concrete. this would be an affirmative nod to his Yuri fans, would allow it to be published in Big Comic Spirits without causing any problems, and would win him the adoration of both his Yuri and non-yuri fans (not to mention put a cap on repairing his reputations after the Prism debacle). at least, that's what I'd do if I were him.