It's interesting because you can't argue with the success he achieved, and given how high the stakes were, you can sort of understand the temptation to micromanage. But (having read the essay now) you also can't learn much from Rickover's methodology, or apply it anywhere else. If for no other reason than the fact that few/no similar problems exist anywhere else.
We also can't run the experiment multiple times to determine if he was really relying on luck all along. The Navy's luck ran pretty low at a couple of points (Thresher and Scorpion come to mind).