I would imagine that the initial residents were pretty dedicated to the plan, but subsequent one's might become curious or dangerous; I think that it is better than just calling it flat-out stupid.
regardless, thee is a power in place to enforce that plan.. the vaults arent needed as a guide to how to deal with stuff.
furthermore, thrre were thousands of years of civilization before that that would give them reference to these things.
the powerful people just before the great war would have been amongst the best educated and privvy to a large amount of information about nationbuilding..
if they had any doubts, they could have brought reference materials, rather than re-purposing the entiretly of the vault netword, essentially committing genocide on the true citzens of the very america they purport to envision a revival of.
hahah
i shoulda stopped a while ago.. i could go on and on (and sometimes do)