Not necessarily. Python had the best C-API, that was the main reason. If Nim or Lisp copied that C-API people might move.

It is safe to say in 2024 that people do not want FFIs.

Yes but we're still getting to the same point.

Why not just call the C code you've already written in C ? Because they would rather use python (or python like) syntax.

I don't think we actually disagree here. Even your point about the better C-API doesn't indicate that syntax wasn't a deciding factor, just that one of several options had better compatibility.