The problem is that most people don't really learn much math at school.
Most people will learn to add , subtract and do multiplication, some will even cram their brains with equations to pass a math exam and then promptly forget it all afterwards.
Programming provides a practical hands on may to introduce logical problem solving. It's something that could be used to supplement Math class.
I find it much easier to understand Mathematical stuff if I have written a program that implements it.
decomposing large problems into smaller ones is math. we all took 10 years of math in high school and college.
a broad education is good. coding, in particular, may or may not be relevant, but certainly more and more schools include a year or two of programming in high school or college. that's probably plenty. no need to get all worked up about this.