Langewische fils added one new bit of aerodynamic information: that the elevator is unable to override the stab when the airspeed exceeds the envelope.
He omitted that the MAX no longer stopped trimming when the pilots were pulling or pushing on the control column – a major change in behavior in a decades old type that was hidden from the pilots
The article, while voluminous, also left out how simulator trials worked out; mind you, there's a limited number of sims that model MCAS. And how many model a messed up AoA vane?