"It was designed for . . . . . . that no longer exists, and is woefully inadequete for . . . . . of today."
Sadly, this could apply to most facets of modern aviation. So much of what we do in training and flight ops is no longer valid but we do it anyway because the industry is so fearfull of change. "1000 to altitude", what a redundant call.
The diversions I have been involved in have turned nasty not because of traffic levels or landing slots but because of crap exscuses like "no parking" or "CIQ not available". Bollocks, we filed this airport as an alternate, we are landing. QED.