An interesting story, good sir. However, I was working with the OEM at the time so it would not be appropriate to comment publicly. Perhaps when next we catch up for an ale or two ?
The NTSB was scheduled to come along but, at the last moment pleaded workload, so we two OEM chaps (me and my offsider FSR) were it. Where the report was promulgated past the OEM I have no idea ... I completed it as a contract task after I had left the organisation.