I already knew what I was getting into when I started because I've been in and around academia for more than 2 decades. However, many of the students don't understand the intricacies of American higher ed. And they can be hard to explain to current and prospective students who just want to know if the degree will help them get a job or obtain some other goal in life.
That said, if I am not mistaken there are rules about to go into place at the US Department of Education which is supposed to eliminate the distinction between national and regional accreditation[0]. This should be fun to watch how it plays out.
[0] https://www.insidehighered.com/views/2020/03/17/pros-and-con...