Their "scientific" explanation is nonsense. Their compare the "energy" of the hurricane system with that of a detonation. Then they say you could change the Category of a hurricane by just increasing the ambient pressure.

Angular momentum is conserved. If you create a detonation in the middle of a spinning storm, you'll get the usual explosion effect (fast) overlaid on the spinning storm (relatively slow). That's even more nasty than either effect on its own.