To be fair this is a terminal file manager… only a certain kind of person will be interested in the first place,

that’s the point

and those people are likely to be more inclined to leave a star on GitHub.

I don’t see that connection. But you know what, here is an example.

Broot is a similar program. It has been there for longer, has been loved by many, yet it has fewer stars.
If I would know more of those like this, I would probably have more examples.