Hydrogen is a gas too and you can make it without emitting carbon. If you want you can also make methane from atmospheric carbon and water.
Thank goodness that around 99% of our current hydrogen is made from fossil fuels!
If your going to burn the power turning it into hydrogen then you save a shitload of that power by putting it in batteries instead.
i suspect that thinking is similar to the ideas people had that got them to buy hybrid cars because of EV range anxiety.
but hybrid cars are saddled with a maintenance heavy complex system that isn't used much.
nowadays we know the solution is just a bigger EV battery.
Hydrogen is a storage medium. It's fundamentally different than natural gas. Think of it more like a more complex, expensive, and inefficient battery; with the only advantage being that you can store more energy per unit volume at large scales.
I don't think parent was against gas because of its physical but rather because it's a fossil fuel
FWIW, the latest analysis I've seen seems to suggest that biomethane is probably the way to go for last-resort long term backup. Hydrogen is just too fickle.