"Keep in mind that nitrogen is one of the basic ingredients in many popular explosives. So with the proper mix, it breaks out of its "inert" reputation and reacts quite "explosively"."
You're correct, in a certain way. It's not the "mix" that makes the difference, but whether you have nitrogen molecules (N2) or atoms (N). The two atoms in each molecule are firmly "tied" by three pairs of electrons, which is the reason why synthesising ammonia earnt Haber and Bosch a Nobel Prize. Nitrogen atoms, which indeed are an important part of many structures of molecules of explosives, act differently.
It's somewhat comparable to the difference between molecular oxygen and oxygen "in statu nascendi".
Don't cry because it's over, smile because it happened.