Marwan,
And it sounds like you have been suckered in as well by it.
indeed it does. Boeing and Airbus object is to manufacture and sell aircraft, not operate them.. such 'studies' are not impartial and more of a vehicle for their own purposes, including that of bolstering shareholder perceptions of future stock value.
hence it is disingenuous for such partisan studies to be used out of context in the promotion of flight training services.
there are as many 'investors', maybe even more so, that have been screwed over on glossy presentations on the money to be made in aviation as there are 'wannabes' that have left high and dry.