I have always thought that the government and the Brabazon Committee were very far-sighted, especially compared with the Short-termism so obvious in all modern governments! We were still in the middle of a major international conflict and stretched beyond belief financially and in resources yet they looked in great depth at what should be done in UK assuming we would win.
Sadly so many decisions they took turned out not to be good ones, for all sorts of reasons, but I do respect the fact that they did attempt to look into the future and start planning for it.