Yes, flaring gas is a slightly lesser evil. But I think it's the gas that misses being captured (even when they're trying) from the gas wells, the big pipelines and industrial facilities that are the real big problem sites for fugitive emissions.

I read a report that claimed that properly accounting for fugitive methane emissions (which have tended to be massively underestimated) actually brings gas back to being just as bad as coal in terms of global warming cost. But coal plants do emit huge quantities of other nasty pollutants apart from CO2, so gas is still slightly better in that way.