If you actually read the official accident reports published by the NTSB and their foreign counterparts the principal causes of the two accidents were inadequate maintenance controls to identify and correct the bent AoA sensors and insufficient training and experience of the flight crews. There is a reason why the “runaway horizontal trim” emergency is a training checklist item for all commercial pilots. The main fault of Boeing was failure to disclose the existence of the MCAS software to pilots. Boeing bore some responsibility for the accidents but making them into evil villains is despicable.
The video contained several misleading pieces of information about the MCAS. It was not a “stall protection” system but rather a software fix to make the 737 Max to perform at high angles of attack exactly like the 737. This allowed Boeing to avoid having 737 pilots get an additional type certification for the Max since its stall characteristics were identical despite the different CG created by the larger engines. Training is the largest costs of operation.
Also, the MCAS has redundant AoA sensors one for the pilot and the other for the first officer side of the controls. Only one was damaged and the flight director could have been switched over to use the functional one if the crew had noticed the disparity in time.
I also dispute the assertion that they only had 10 seconds to identify and correct the problem. If a pilot is not in IMC (Instrument Meteorological Conditions) he should know where the horizon is. If the flight director is pushing the nose below the horizon with all engines running it needs to be disengaged and the plane flown manually until the issue can be resolved on the ground. Pilots are trained to manage the flight director, but they can’t forget basic flying rules of Aviate, Navigate, and Communicate.
The original Boeing would not have shipped that abomination that depended on a software fix.
Again, while Boeing could be at fault, it’s lack of proper training by these third world airlines to actually know how to fly the plane, versus relying on the computers.