I don’t know how it is today but when I went, you had to take a certain number of credits in humanities, social sciences, etc, no matter what your major was. So while they didn’t specifically mandate “Greek Mythology,” they mandated a certain number of credits from courses in that bucket, which stretched the time commitment for the degree at least a year from what it would have been if I focused on just my major requirements.
CS requires some humanities and CS requires mythology is pretty different. And ideally CS would include some relevant topics for understanding how tech can inadvertently mess up people's lives.