There is no carbon neutral fuel before we have a surplus of carbon neutral energy. Currently, any kWh you use to synthesize fuel could instead be used for something else. It's probably less carbon intensive to keep on burning regular fuel, because it takes a lot of energy to make synfuel.
Of course it's nice that they subsidize R&D for synfuels (we might need them for niche applications after all), but selling them as "carbon neutral" is just greenwashing.
