It's my assessment of the professional assessments of experts such as aviation safety consultant and former air accident investigator Tim Atkinson and former FAA and NTSB investigator Jeff Guzzetti, as well as the contents of the NTSB's report, and Boeing's well documented history of putting profit over safety.

I believe that it's the opinion of experts that Boeing either misjudged the safety risk of the bearing assembly when they should not have or that they incorrectly downplayed that risk when disclosing the flaw to their customers and I'm inclined to believe those experts because Boeing has already demonstrated themselves to be outright dishonest and negligent when it comes to the safety of their products.

That said, while I would not be surprised if things truly are as they currently appear to be, my assessment is always subject to change if additional information comes to light which makes that less likely to be the case.