Wouldn’t surprise if Creative Commons had something to do with this. The copyleft licenses of it, of anything more restrictive basically than MIT and “attribution”, are listed as “restrictive” and “not open” or something. I think coupled with the complicated legal language versus “idk, whatever man” doesn’t help for lots of new projects.

That said… Most of the stuff I’ve done has been so “idk, man, I made a thing for me and figured others might benefit” that I just gave it the MIT license for that reason. And it may just be as simple as that reasoning.