All other fuels have to mix with air before releasing most of their energy. Even LNG has a relatively trivial energy of compression. Compressed air, OTOH, has all of the energy available instantly, like dynamite. SCUBA tanks are regulated much more stringently than aircraft parts for this reason. If you take one in to be re-filled, and the shop sees a hint of damage, they drill a hole in it, so nobody can fill it.
If this wasn't a stock fraud, I'd worry about whole traffic jams and parking lots going up in a chain reaction.
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