The corrective action is simple and within the capabilities of any competent airline captain to execute. Certainly easier than dealing with an engine fire or loss of multiple hydraulic systems.
I guess that's true, but most aircraft (I hope!) don't have a known design flaw which increases the likelihood of engine fire or loss of hydraulic systems. As I understand, the repositioning of the bigger engines in the Max 8 created a propensity for the machine to pitch nose up, so the MCAS was a kludge, created to help compensate for that design flaw.
OK, I'll say it - a better design option would have been to design a plane that didn't have a propensity to pitch nose up! Back to the drawing board Boeing!