With no intention of a relevant comment to this failure I will say that I have found great difficulty in getting people to understand where risk and what level of it is appropriate. I have been accused of double mindedness for not being consistent in risk or safety factor application for what to some people seem to be identical circumstances when they are not. It all depends and as principal engineer in the absence of design standards someone has to decide and be prepared to take the consequences.
The working life of the Design Engineer is not always smooth sailing...
Now that engineering Skools are working primarily from a SJW “Engineering Education” does not bode well for the future.
I’ve essentially gone virtual Galt and don’t expect to buy major engineered items.