I don't think the idea was really intended to be taken seriously, as anyone with any game design knowledge knows that where reality and fun clash, fun has to win. This isn't a world creation simulator, and will not be used by scientists to confirm or deny theories. It's a game. That type of change would not be fun, because it penalizes players for playing the game properly. Someone with a Zeus or Babel will normally have to build those GBs in a very limited space, and it is entirely plausible they may wish to move it to a location they did not possess when they constructed it for the first time.
I'm sure the author knew this, and put it out there for a reaction. And he got one. Even so, I think there is some merit. Obviously having to rebuild it from scratch is too extreme, but something less painful like the GB not working for a period of time (based on age) every time it is being moved/reconstructed could add a new challenge to the game, without being unduly punitive. It would reward players with a better overall scheme, and penalize those would constantly move things due to neurosis, or bad planning. At the same time, if you move it one time, the penalty isn't a big deal, unlike rebuilding it.
I'd say 3 hours per age would be pretty good. This way you'd penalize people who had little land to put their GBs on far less, while at the same time, strike a blow against neurosis and bad planning.
I think even this won't fly, because most players like it easier and easier (or at least think they do), but I think it is at least in the realm of sanity.