You don't disagree with me on the science. Methane has a limited half life, this is well understood and built into the models. You are repeating the science as if it were different, and then drawing different conclusions from it.

I don't see what the absolute numbers have to do with whether or not oil or gas installations should be able to vent a particular quantity of methane.

Or why it matters that another unrelated source of Methane is limited. If cattle produced a similar but different molecule that would reduce the Methane absolute numbers dramatically, but in reality would have no impact on the question at hand. This is all like saying that driving a car in North Dakota matters less than in California, because North Dakota has lower total absolute emissions. It is sophistry.