I know some of the things these aircraft fitters have to put up with when "upgrades" come through for things that break, the CAD designers are a world apart from reality on the ground and hasn't that always been the case?
However health and safety alongside better record making & taking is constantly improving things... slowly.
Its not British propaganda. I could go into how easily fabricated mill certificates are to keep engineering firms happy whilst maximising profits for metal stockholders. Its hard to trace engineered metals.
The weakness with goods and services is the end user is usually not in a position to test independently due to lack of finance and/or knowledge, so trust is still inherently exploitable.
It was the same for the UK's F-4s, which had a Rolls Royce Spey that put out significantly more thrust than the GE J79s in US F-4s.