My immediate reaction was the exact opposite, because replacing natural gas with manufactured gas would be comparatively easy. You can even push plain H2 into t

My immediate reaction was the exact opposite, because replacing natural gas with manufactured gas would be comparatively easy. You can even push plain H2 into the mix as long as the fraction is within a certain range. A gas network can serve as a considerable sink for non-dispatchable renewables to not go to waste. But it's the same (or better!) for centralized natgas plants, so that's clearly better, at least as long as there are no cheap compromises taken to go electric (like installing cheap resistive heating, which is actually a thing here in Germany, where an entire industry pretends that we'd be fine in cold air as long as there's some IR emitter pointed at our body)