"Weaker" wording? Precisely the opposite. "Cooper" No. 1 is not helpful to the novice shooter. NRA 1 and 2 actively direct the operator to treat the gun as loaded, regardless of it's condition, without the use of fiction.
NRA 3 directs operators to unload firearms not in their span of control -an element that causes the majority of firearms injury to kids, and the Cooper rules don't address.
"well, since its not in use, it could/should/must be un-loaded", and more possibility for bad results...
Impossible if NRA 1 and 2 are obeyed. "All guns are loaded" is meaningless absent the requirement to safely handle the firearm, it adds nothing.
my kids will work on the knowledge that all guns should be considered hot, unless and until they see for themselves...
Please dont waste anymore bandwidth on this semantical masturbation, as Im sure you have a desk full of NRA donation mailers that you really outta be lickin stamps for...