Bullshit. Math requires a bit of wrestling with to master.
To be plain, I don't mean make it harder than necessary, be less than clear in explanations and demonstrations or whatever. However, math isn't just a collection of facts and formulas to be remembered and demonstrated examples to be regurgitated. The student must come to understand the principles involved and their application to problems which are not just like the ones shown in class. For many if not most students this understanding comes only after a good bit of work on their part.
I earned a PhD in mathematics and I can assure you as the level of study rises so does the outside of class effort expected of the student. Most people haven't encountered five problem homework sets that eat up the best part of two weeks to complete.
Which is true of all graduate disciplines. Nothing unique.
