I would suggest that simply taking science courses isn’t going to teach students the scientific method, any more than simply taking philosophy courses will teach students logic, or taking composition courses will teach students to write coherently.
In addition, I understand the focus on course selection, but it’s misguided and focuses too intensely on disciplinary boundaries. I teach a course for the English Department at my institution with a better understanding of the scientific methods as one of its outcomes; there are courses in business and biology here that have improvements in writing abilities among their outcomes.
Just complaining about whether humanities and social science majors take the right number of math and science courses or whether STEM majors take the right number of humanities courses misses what students might actually be learning (or at least what they might be being taught).