Something is going on that does not pass the smell test. I believe that only one of the current issues with Boeing planes has been tied to Boeing itself. The rest are still under investigation and could have been caused by any number of people or things. That would be the cargo door incident.
Among other effects, Boeing lost focus and effective control over quality. One of the world's best aircraft makers seemed to forget that flying is an unnatural activity and that airplanes are innately prone to lethal trouble.
Critically, Boeing also chose to save money on its 737-MAX with an ungainly design that requires a high degree of computer control to maintain similarity with the handling of the previous 737. This led to two fatal crashes in Africa caused by peculiarities of the computer controls that Boeing's manuals and training did not properly warn against.
The recent door blow out was due to errors in manufacturing by the fuselage maker that Boeing had spun off years before. Now Boeing aims to reacquire what it once owned. This vindicates complaints and opposition by a prior generation of Boeing engineers to the McDonnel-Douglas managers.