Send Clowns
but how much time would the graduate of an MPL pilot spend in command before taking command of a multi-engine jet
Not quite sure if I follow your argument here but the MPL is a co-pilot licence which includes a type rating and one assumes that if he passes this, he can fly the aircraft with the captain incapacitated.
No-one has tested this; it seems to be a response only to the demnds of the industry, not to the setting up of a course to teach real pilots.
It's the airlines who set the standards for pilots - it's the airlines who have initiated this licence and it's the airlines who will determine if this concept of training produces "real pilots".