I don't think I necessarily agree that the clowngender stuff in psycholonials is mocking of nonbinary identities. To me it reads like a semi-earnest (as earnest as any of Hussie's works get really) exploration of what it might look like to express the idea of gender beyond a linear scale from 'man' to 'woman.' It's pretty undeniably a flawed expression in several ways, especially in that is makes some assumptions about nonbinary people that simply don't pan out as smoothly as such a strictly definitional expression would need them to, but I don't think it comes off as, like, dishonest.

We also kind of can't know how much Hussie was aware of those flaws while writing. At the end of the day, it's a crafted story, and things like that could always either be unintentional biases by the author or intentional flaws indicative of flaws in a character, and it's very difficult to draw a distinction between the two without personally knowing the author.

I do think it's worth talking about these things, and the pattern that can be seen when viewing them all together is certainly notable. I just always feel it's worth remembering that it's not absolute.

At the end of the day, my feelings on the matter in regards to Hussie specifically is just that I don't know what's going on in their head, especially given the wide timeframe this all took place over. Nobody stays the same person over a decade, after all.