I would put good money on the engineers knowing the requirements but they were overridden by the beancounters and political masters for a bit of extra gravy.
I dunno... "never attribute to malice that which is adequately explained by stupidity."
Where the knowledge does exist it's choked off by reporting hierarchies that have been utterly broken by non-meritorious promotion policy.
The few Mr Hams who do stick around have supervisors that are a standard deviation or two dumber than them.
