No, you're correct. That seems like a pretty clear style parody of Dioxin. I especially like how everyone in the panel shifted to that style.
What did you call me?Bring her back.Shiki-sama.I caught a strange Cirno!!Uh ohThat's not Cirno, that's Harumi.Yes?Just nowUmmm, Eiki-sa...Ahh~ I feel completely refreshed!...Take a closer look.Seriously!Eiki-sama!By the way, "Komachi"Uh oh.