That sketch follows a format as old as the hills: take an orthodox political opinion, exaggerate it, and spin it into a spoof public service broadcast where common sense and normal values are presented, followed by a big "NO, this is what you should think", followed by a piece of advice that is unfeasibly stupid. The sketch serves to demonstrate that the orthodox opinions turn common sense on its head.
I could give you pages upon pages of examples of sketches that follow a similar formula but the most obvious example is Harry Enfield's Women! Know your limits!" sketch mocking people who want to return to 1950s British values. If you watch that and end up thinking that Harry Enfield is endorsing the view of the infomercial, i.e. that women should shut up and get back in the kitchen, you're missing the joke completely.
Or maybe it's true what they say... we really are two people divided by a common language.
“I’m sure it will average out statistically to indicate a long term warming trend.” Followed by a big green check mark – meaning a correct assumption – across the screen. Just too much like Algore logic.
Know your limits was hilarious! The joke is obvious there.