Love the old style. Another great example is the old Indianwood course in Lake Orion, Michigan.
There is no self consciousness about "the right way" to build those mounds, as that all came later. They just sort of built what they needed and could. The smaller scale and abrupt change of slope is part of the charm, too.
Frankly, I could see those returning in place of bunkers in many many cases. One probem is that with wall to wall irrigation, it is hard to place them to where the fescues can stay wispy enough to play well and not lose golf balls, which is different from when they were first built. But, I guess if we can alter perfect irrigation spacing around bunkers, we could do it for around steep bank mounds, although it would drive most irrigation designers crazy!