The generous interpretation is that was a jolly quip about those that confuse global averages with immediate specific locations.
For example, some might forget about hemispheres and assume January was globally meaningful when some of us are going through a tarmac melting heatwave.
Life under a rock is generally stabilised - warm during the night, cooler than direct sunlight during the day .. that's why goannas and perenties live in tunnels under rocks.
