Distilling doesn't make it more economical than traditional refining though, according to their whole position. Boiling involves ALOT of energy compared to passive membrane separation.
Fossil fuels should be eventually taxed into oblivion. Even at current taxation level their distilled fuel would be competitive if tax exempt for example in Europe.
It's a bit like investment madness, in which investors are being swindled because no one is doing their due diligence to vet the tech and instead throwing money in a blind panic in FOMO.