Hi,
When a concept atrophies a pilot's basic ability such as trimming, there are very serious questions to be asked regarding that design, especially as that pilot could be requested to instantaneously master that art again following a malfunction of that very same wonder concept.
Those kind of consequences (atrophy of basic skills by a concept) is coming common in the industry
I see that in marine industry (unable to control manually water level and pressure of a high press steam boiler)
Again ..training .. training .. it's must be trained .. as the marine engineers who have the experience to manually control a boiler are a endangered specie !!
Even manually coupling on the electrical bus bars one diesel generator is for someone a unknow task !