Fair points. in rereading the comments, I think "fits the content so well is in relation to the comment that comment replied to: the content being quirky and comical. So the navigation being non-standard is on brand.
and this is different from your point which maybe is "how does this help me understand fonts better?" which is fair.
Thanks for the added context. I obviously missed the nuance because I ragequit the page, so your perspective does help answer my question.
I can understand the perspective that something whimsical might appeal to a certain group and even enhance the experience; in fact I usually enjoy non-standard game designs, and in general I really appreciate subversion in most media I consume. I think however when it comes to educational or info-dense resources, I prefer the UX to be minimally distracting.