I meant "basic" in the sense that it does not have a lot of helpful features for developing complicated applications. Whether or not that's easy or hard for any individual to use isn't really relevant.
That said, Vim has some IDE-like features, moreso for C (by default) than some other languages.
Again, the point is that C is complicated and hard to work with as you scale up into a bigger project, not that my tools are better than your tools.