Unironically, yes, I'd bet dollars to donuts there's some niche creator doing exactly this. As an example, one of the people I follow (@maklelan) is a PhD in theology & religion, and has ~1000 videos on biblical scholarship, the history of various religious texts, different translations/interpretations of scripture, etc.
It's interesting and very niche content. There are probably 1000x more views being had by attractive young women dancing, but TikTok is big enough that it has everything.