a writes:

I watched the real time adjustments during the approach, and have
serious doubts that someone alone in the cockpit with over the radio
instuctions could in fact do what the crew did, even if that person
had sim experience.

Any intelligent person could do it with or without sim experience. And
remember, these aircraft can be flown by one person in a pinch.

In the world of psychology studies regarding open-
loop instruction systems have shown them to be very error prone. It
would take someone very good at giving blinded verbal instructions to
pull it off.

With someone good at following them, and someone good at giving them, things
would work out.

Read what happened in something I just posted about an F18 pilot being
given instructions on bringing his bird home in San Diego -- hardly
inexperienced, and yet the result was a deadly crash.

He was in training.