I jumped straight to the history of the MPL section in that document and the first line I read was
"Ab-initio training in light propeller single-engine (SE) and multi-engine (ME) aircraft (normally delivered
by instructors without airline experience – and sometimes motivated to build their own hours),
graduating with a Commercial Pilot License and Instrument Rating"
Whilst it may be true, I can't help but get the feel there is an agenda here ...