The 2023 explanation you provide above, seems to suggest "when a runner's forward airborne movement is propelled by an opponent's contact, the runner is ENTITLED to land. Should that landing contact point end THE RUNNER'S ADMANCEMENT, the RUN has ended.
Should the RUNNER'S advance, while airborne, be assisted by teammates, that advance is NOT CREDITED TO THE RUMMER, and HIS advance (while maintaining possession) should terminate the RUN, as determined by the covering official. This prevents the travesty of teammates carrying an airborne runner down the field, and the logic presented in the 3023 explanation, you provided, clearly explains that.
NFL interpretations, reflecting specific level conditions, often differ from NFHS rulings.