RVR,
I have the impression the new MPL is not intended to replace any of todays training, but will represent an alternative route of training.
You are right on todays focus on PIC-training. The coming change to "MPL-training" will represent a major reduction in this PIC-time. This in turn might lead to a possible corresponding reduction in decisionmaking experience, something that is seen as regrettable by several.
Cheers,
Redbar1