Isn't power to gas still ridiculously inneficient?

Last I checked it seemed like something pushed by gas companies since it upholds gas infrastructure and most of the intermittence is currently supported by gas.

It's very costly compared to normal gas but it's still marginally cheaper to use solar and roundtrip p2g to use on a cold, windless night than it is to use nuclear power produced on any day of the year.

There's just zero economic incentive while polluting gas is dirt cheap and maxxed out solar and wind rarely even covers 100% of current electricity demand.