That has got to be one of the most lame
PR exercises that I have ever seen and betrays a lack of an engineering mindset at America's premiere aerospace company. Congratulations, Boeing, you have proven that any competent pilot could have flown your faulty aircraft before the fix, any competent pilot can fly your aircraft after the fix, so Joe Passenger should have no worries at all about pilot skill and pay when boarding Economy Airlines -- who happen to be your target customer for the Max!
If you can't reproduce the problem, then you don't know what the problem is. I would feel more comfortable if the story were that these elite pilots had a really hard time recovering the aircraft before the fix, and after the fix all was good.