Well, one must keep an open mind -- I mean, science would never have progressed if there never was anyone willing to step outside conventional wisdom to entertain an "absurd" idea - such as the "ridiculous" notion that time could dilate to meet some Universal speed limit -- or the "crazy" assertion that viewing an experiment can alter that experiment -- or the "sacrilegious" dalliance with the idea that the Earth is _not_ the center of the Universe or that ships venturing beyond the horizon will not be eaten by dragons or will not fall off the edge into oblivion (when viewing depictions of water falls at the edge of the Earth, did anyone wonder what replenishes the oceans? Oh, yeah, I forgot: God, with His infinite resources can supply abundant water with ease).
Yes, "Over Unity" is rather unlikely -- all of modern physics would collapse if such a thing could happen -- but, could there not be some other form of energy that is yet to be discovered? And could it not be possible that in some rare instances, this form of energy is being tapped. I agree, it's highly unlikely. But, how can we know, what we don't know even exists? How much else is out there, that has yet to be discovered.
Perhaps they have yet to be discovered, because currently we don't have the tools to look in that direction. It wasn't until humanity build sophisticated enough telescopes, that "Dark Energy" was discovered. Before that, dark energy existed in that realm of things we didn't even know existed! Why? Because we had no way of looking for it. We didn't even have a way to stumble upon it. The moons of Jupiter were there all along, but until Galileo pointed his crude telescope in that direction, nobody even conceived of such an idea! Microbes have been around for millions of years, but not until the microscope, were they given scientific sanction.
Any so called scientist that turns his or her nose up at an idea or concept, is limiting themselves. Compartmentalize, yes. Place those ideas, that haven't been scientifically proven, in the category of unsubstantiated, yes. But, a scientist that dismisses anything, will never become an Einstein or Bohr or Pasteur or Newton. The ability to entertain the absurd is the earmark of greatness!