Elon's long term plan for Falcon is to switch customers to Starship as soon as it's available, and they're comfortable switching. (Which might be a while for th

Elon's long term plan for Falcon is to switch customers to Starship as soon as it's available, and they're comfortable switching. (Which might be a while for the Air Force and NASA.) In the meantime, any major changes to Falcon would be a serious distraction, which he'd probably forgo for that reason alone, regardless of the technical merits.