(Yes exactly, IMHO, Vault Tech was working with the US Government's shadow overlords(aka the Enclave) to set up most of the Vaults to be social experiments, and see how some tech or experiments would work, as we have seen most went horribly wrong, had problems, or were outright taken over/destroyed. Of the 17 that were to function right, we only know of two of them, and know how one of them turned out. So in conclusion, if they learned anything, it would have been very little to nothing, as we saw, most of the disasters took place early on, and any major info gotten would have gone up when the oil rig went up or when Raven Rock went up, but i could be wrong.)