This "MEG" device will "work," to a point. A very SMALL point.
This device extracts its output not from zero point energy but
from the rotation of the earth. The effect can be observed by
merely attaching a very high impedance, extremely high gain,
low noise amplifier and an oscilloscope across an ordinary
permanent magnet of high strength and reasonable length.
There will be a tiny amount of potential induced by the
constant acceleration of the magnet by motion along a
curved path. If one could eliminate all other sources of
electromagnetic fields it is true that there would be a
tiny component from the emf of zero point energy
interacting with the magnet, but one is not "extracting"
the zero point energy, rather the energy from the earth's
rotation accelerating the magnet through the field.
"Extracting" the zero point energy would violate the law
of conservation of mass-energy.
The rest is all smoke and mirrors, typical of all devices
claiming to violate the Second Law on a macroscopic
scale.