Maybe not if you just look at the climate change aspect but burning coal also has a significant effect on air quality due to all the random shit in it. That said I certainly wouldn’t celebrate switching to methane it’s still basically like the third worst option.

Coal is so much worse than just the greenhouse gases. I'd much rather deal with methane leaks than clouds of cancer-causing particulates

from a heavy metals perspective and from a particulate perspective, yes, it's much better than coal.