Yeah, that is the conspiracy theory. Truth is it didn't work. You cant get electricity like that. As it is AM waves use this to transmit over the horizon. It's why it travels so far.
You can't say it didn't work since it was never tried. All the physical principals are there to make it work. All you do is hand waving conspiracy!!! because you don't know better.
It was tried... they ran experiments. What they never did do was create earthquakes, or weather events. Just saying they used resonance is meaningless.