Pointless over-selling of a marginally useful technology: isolated outposts with plenty of wind or sun could use this to avoid the need to bring motor fuel in from afar. Other than that, until frackable oil and natural gas are used up in a millenium or so, this isn’t very interesting (and if the Russian theory of non-fossil petroleum formation turns out to be wrong never will be except for the use I just proposed).
Even coal gasification would be less energy intense, wouldn’t it?