Yes, but generally this seems to be close to the cause of why this became a problem (that is, bad documentation may be why the bolts were not replaced to begin with). The anonymous, ostensibly internal whistleblowycomplainers said this was a process-documentation problem a while ago, before the NTSB looked into this exact problem.

This is exactly what you should expect. Documentation is corporate frauds biggest enemy. If you are going to commit crimes and kill people, it's far better that you don't have records of incompetence even if lack of records is itself a display of incompetence.

Official logs of problems can give you insight into how deep rooted and severe the issues are. Lack of documentation means there are problems but allows them to hide the depth of them. E.g. we can't know how many other door plugs were shipped without bolts