i think it provokes a variety of reaction from all reader, to discuss the story itself is a BIG WIN already. I don't think story need to be too PC and a feel-good story, especially since it just remove the nuanced or understanding that forms from the discussion between people. But more importantly, I think the author-san job is too make fun of cis-people and their ever curiosity of what inside other's pants, and they make cis-people realize the constraint of gender binary itself with a laugh. Nobody likes to be criticized or called name tag, Story like this is a way to bridge the gap of understanding for me, a cis-woman. And maybe in future, There will be a time, we as human won't give jack shit about what other genital be like.