Is it? From what I could tell, basically they are simply saying why let a private bank run the printing press and then pay interest on that money when the State could just print money itself, free of debt? Which, if that is all the B of E is doing (printing on behalf of the State), then that makes sense.
The missing component is ... what limits the amount of money issued? If the issuance (and destruction) of money is the amount necessary to ensure stable prices, then that might work. If it instead is to fund State spending, then this puts a nation on the fast track to becoming Zimbabwe.
Their talking points mention that the power to print isn't in the hands of the "vote-seeking politicians" but I didn't see how that is ensured.
I think that using this system combined with bitcoin can be the best system we ever had. Bitcoin would be a good backup if the government tend to loose control.