IMO, what marketing does cannot be used as concrete evidence there is a lack of line competence, period.
Manufacturers build a tool that is sold to a second concern, one that is directly responsible for folding the machine into its useful life.
It is naive and misleading to think that salespeople have degraded hand flying skills. A trustier airframe does allow for changes in procedures and focus.
I keep in mind that airmanship and flying skills are acquired as we train, not after conversion to heavy and fast.
There is some inexplicable evidence to be explicated here, but to think that Typing on a widebody shoud include a refresher in Gliders, aero, or other for goodness' sake basics is a reach.