Pilots are already trained to stop runaway trim failures, and received an Emergency Airworthiness Directive explaining trivial procedure to counter MCAS failure.

Of course, the MCAS software was badly designed, and the single path failure, are squarely Boeing's fault.

Pilots must always be ready to deal with runaway stabilizer trim, on any aircraft type. It's a "memory item".

The whole shit happened because Boeing only used only one sensor for the system because then it wouldn't be seen as safety critical and wouldn't need to be mentioned extra in the manuals