My favorite quote from the article: "It is incomprehensible that Boeing designed the software to take input from only a single vulnerable sensor... Why did Boeing ignore aviation's time-honored principle of redundancy?"

Every single question of “Why?” in this article can be answered with “Money”

Design outsourced to cheapest bidder?

> In the waning days of the Trump administration, the Department of Justice (DOJ) secretly negotiated a Deferred Prosecution Agreement (DPA) with Boeing pertaining to the criminal charges. The DPA enables Boeing to request that the pending criminal charges against it be dropped if it does not commit any crimes over the term of the agreement.

> I noticed startling timing: The agreement was signed on the infamous date of Jan. 6, 2021. The Alaska 1282 door plug blowout occurred the Jan. 5, 2024, which is just a hair before the expiration of the three-year term of the DPA. Should Boeing have criminal responsibility in this blowout incident, then the earlier criminal charges arising from the Boeing’s deception of the FAA would no longer be eligible to be dropped.

That stood out to me as well - just one more day and, legally speaking, the situation would've been totally different.

Like with submarines, there are more important things than safety!