There's also the question of the total cost of operation. Wall plug efficiency includes the cost to cool the system, which is greater when it has to get down to cryogenic temperatures.
You still have the cost of acquiring mining equipment. Free power can drive down costs, but the real mines and the chip fab are not free. You can talk about free energy, but there's still a cost to harness it.
The dynamic aether model in which it accelerates toward massive bodies as a sink is consistent with the null horizontal measurements, further confirmed by Martin Gruzenik's vertical plane rotate interferometer. A leaf floating in a moving river does not notice its motion.
"Born secret" is key in their rationale. Being jailed, yes, but they will go through something obscure like IRS to "find" a felony. They stalk and harass, utilize DEW and V2S to torture, poison your food, etc.
Simply being a genius inventor is not sufficient. They have to stand up against lawfare, physical threat, corpirate espionage. Anything to protect quo.