Mostly seemed a good summary except that there was no mention of the Stab Trim Cut-off switches. As far the public are aware from this story, the aircraft becomes totally out of control. Not quite true, with the ability to kill the electric stab trim!
Furthermore it didn't mention that in the Ethiopian event, if I understood correctly, the crew re-connected the stab trim in the final moments, upon which the MCAS started trimming nose down again. This differentiates the Ethiopian accident from Lion Air.
Disappointing that the manufacturer stepped outside the norm of the 737 philosophy and added some software that essentially took the aircraft out of "direct law", with what seems to be a patch to fix an undesired characteristic.
Just some observations.