sky9, operation of MCAS will move the trim wheel, which is limited in normal operation, and with a different, but manageable deviation for failure.
The trim runaway case is not constrained and thus requires pilot detection and inhibit switching.
Flapsupbedsdown, - 'There are non FBW aircrafts with no trim wheel.'
Yes, but they meet the certification requirements with higher levels of integrity and alternative means of operation.
B - 'Did Dickson try out this procedure on his test flight '
Why should he; a qualified 737 pilot should be familiar with the actions for trim runaway (not an NPA issue ?), although he could have considered the changed / clarified procedure wording (in the NPA).