The pilots for the doomed MAX's did not seem to know how to read some of the basic instruments on an airplane, ie: airspeed and altimeter. Regarding responsibility it has to be shared can't blame Boeing for a mal-functioning AOA sensor or not throttling back on your air speed or disabling the auto trim.
I believe the MAX WILL be one of the safest planes to fly once its back in service and perhaps the outcome of this unfortunate incident will prompt an investigation into the operations of these low budget airlines, on crew training and maintenance, etc.
Lastly I have learnt from my VFR training to FLY!! the plane NO amount of redundancy in the design of the plane will help if you don't understand the basics of flight. Just reflect on the miracle on the Hudson and how that could have gone horribly wrong if it wasn't for the skills of the flight crew.
