I had to think about this for more than a second. :) I think I see what you mean. Specifically, if N = 2, this doesn't do much. However, as soon as you have more folks that agree, then the first time someone disagrees, you have a good spot for auditing. Right?
I still can't see how the docker idea helps this purpose right off.
I don't quite agree - it more clearly establishes what tool chain people should be auditing!