How those assemblies got installed on the automobile. And last how those assemblies were missed at the final inspection.
Bingo.Your questions are right on the money and can’t be answered with just an every day human error. This had to intentional on someone or several someones part.There needs to be a criminal investigation
Something cynical is going on.
Back in the day when the UAW had differences with Chevy about how many of their then-new Vega should be processed through the line per hour. They torqued fasteners down way past their specs. I came across this personally in a shock absorber mounting bolt that had to be sawed off — the threads had been stretched way past normal.