CSS minifiers vs Brotli

What’s the point of css minifiers when you have brotli?

What if a generic tool was more efficient than a specialized one? An interesting point is that swithing from gzip to brotli decreases size far more than adding rules. That means using information about the structure of CSS does not offer as much improvement as handling the input as text in general. extracting improvements in the CSS minification phase does not look very good.