Just for shiggles, I'm more than a bit puzzled as to how or even why such evidently inaccurate figures/extrapolations could skirt the notice of more than one person in the loop....
I mean...
not one person yelled "stop the presses" (as it were) and asked even
rhetorically how one could possibly fit so many floors into so many feet?
IMO Lackadaisical proofreading of one's data, most especially as something as simple and pithy to research to begin with as this, is a rather piss-poor defense against the excuse that a simple error was made.
Rant over....