It's a great shame that the passengers and crew,once again, seem to becoming part of the test flight program.
I always thought it risky, the authorities agreeing to a new airframe type and new engine types, on the same aircraft. It seems my fears have been unfounded.
However, when the manufactures start "playing around" with the automation, I become quite concerned.
If it ain't broke, don't fix it comes to mind. Or is it now, fix it until it breaks?