Having completed a MS (Data Analytics), I think this critique misses the point. In my own experience the "simpler" methods and skills were an expectation of the student prior to enrolling and in point of fact were essential to success in the program.
The bigger question is whether professional degrees on the whole are effective job credentials. At one point, an MBA was all but a requirement to join middle management just as a college degree was a ticket to corporate America. Increasingly however ...