Retired Aviation Ordnance, USMC
The danger is inherent with the LiO battery. Moving them from the passenger compartment to the cargo hold does not remove the danger. It just relocates the danger. Safer is problematical....
Welcome to the world of HUMAN factors.
I saw a disturbing comment involving government range safety,"lack of personnel". SpaceX's achievement will reduce that hazard, limiting launches.
As a Marine, if I call for air support, I want an aircraft that carries a large quantity of ordnance and can remain on station. Fighters such as the much valued F-35 have to reload and refuel...
The B-52s are close to immortality. Wish it were so for some other Air Force work horses. The Thunderbolt II and Bronco 'O' for example.