Concur with Spitoon ...
In a world filled with consipiracy theories, I suppose it is unsurprising that some would consider that ICAO Annex 14 had failed to take account of the reality of aircraft operations, and what could happen, and at what probability. Hundreds of aircraft operators and ATC professionals over many decades undoubtedly just doodled something from time to time on a beer-mat, and then persuaded the entire aviation industry to accept the safety criteria they came up with.
[Retired ATCO]