There are certain things such as detonation speed, concussive force, ignition characteristics and composition which dictate what is and isn't an explosive. For instance, gun powder burns but doesn't explode. Yet, it has many of the characteristics of explosives under many circumstances.
I'm not trying to criticize but only be accurate. The anti's use a lack of correct information and misinformation against us far to much.
Mike
The fact is that you can EXPLODE a mixture of fuel vapor and air in such a way that it will apply MORE EXPLOSIVE ENERGY to a large area target than you can with several times the amount of high explosive.
High explosives do not contain the energy, pound for pound, that a FAE does. FAEs have the advantage that they only have to contain half the reactants, whereas High explosives have to contain all the reactants. High explosives do release it faster, potentially producing more power, but that advantage is lost very quickly as the shock wave travels away from the explosion.