I think where they deserve praise related to process is the pragmatic and frankly pretty brilliant way they worked around 7nm processes yield issues in Zen 2.

To improve yields they used a number of 8-core "chiplets" manufactured in 7nm tied together with a 14nm I/O die. This meant that while a certain blue competitor was still trying to get 28+ core monolithic dies, AMD could scale to huge core counts without reducing yields by tying together more chiplets.

Their 64-core 128-thread Threadripper workstation parts should have yields almost exactly as good as their low-end CPUs. The Xeon W 28-core monolithic monster? Not so much.

AMD did a lot of things right this time. Intel's got some catching up to do.