Regarding Methane on Titan

When you think of methane, what's the first thing you think of? Answer: cows. Not so for rocket scientists, who look for geophysical explanations and such. But masses of critters are part of, and shape, geophysical landscapes. Biological explanations are uselessly left off of the table. The linked article goes on and on about all the methane on Titan but never once mentions that, if we had gotten the same methane data on Earth, we would recognize it as a sign of life. Get holistic, y'all!