I don't believe the concept of "blame" has any place in air accident investigation. Pilots should be able to report their mistakes without fear of prosecution or internet mobs, and investigations should be able to highlight errors on the part of pilots where they exist without the same kind of fears.
This is not an automatic system relying on a single sensor, as MCAS was. An airliner in flight is a complex system of which the two pilots are a very significant part. There were multiple failures here, and the technical failure was not particularly unusual. What was quite unusual was a failure of basic airmanship on the part of the pilots. A good investigation would (and did) look at how that situation came about so that training or human-machine interface can be improved to prevent it happening again. It's not about blaming, it's about understanding.
This is not an automatic system relying on a single sensor, as MCAS was. An airliner in flight is a complex system of which the two pilots are a very significant part. There were multiple failures here, and the technical failure was not particularly unusual. What was quite unusual was a failure of basic airmanship on the part of the pilots. A good investigation would (and did) look at how that situation came about so that training or human-machine interface can be improved to prevent it happening again. It's not about blaming, it's about understanding.