"In fact, the more I read it, the more the whole article stinks. " - Capn Bloggs
Agree completely, including your quoted passages. It's terrible work, dressed up pretty.
Those who know accident investigation and flight data work routinely ignore such contributions as the data source used is not an investigative tool but a polished internet toy that gives the appearance of careful work that in truth just fuels uninformed internet speculation in advance of the facts.
There's no point in such work (other than for ego) because it can't possibly describe what occurred without the flight data from the recorders. Anything else is just a cartoon.
PJ2