What I'm saying is that the MCAS is there so the plane can get the certification. You can fly the plane without it but it's not considered normal (or safe) oper

What I'm saying is that the MCAS is there so the plane can get the certification. You can fly the plane without it but it's not considered normal (or safe) operation. Which is why it must be there and it must work. You can fly a plane without an engine if needed but just try certifying a plane with one engine under one wing.