Chance of diversion vs carriage of extra fuel has nothing to do with safety, this is commercial decision.
What makes you think that zero hours cadets are less safe than others who flew another few hundreds in Cessna? Please no BS like "common sense" because I do not see any common sense here. Do you have a reference to some study which has proven it?
Your post smells like "bring me back my old good Pan Am", nothing to do with safety, all about personal comfort and perks