Originally Posted by
the810
Because it's much better to have navigation signs point "this way towards F and G gates" rather than "this way towards gates 401-457 and 501-523". This is a perfectly reasonable decision.
"Much better"? And there is no G gate, remember, the letters miraculously chosen to make sure the whole thing is as much better as possible are B, C, D, E, F, N, R, S, and V. I'm sure that's an optimally logical and perfect choice too!