I remember not long ago after Tianhe-2 retained its No.1 position of the Top 500, I saw somebody (don't remember where) brought up Performance per Energy Footprint to claim the advantage of some countries over China, implying that is something will take China a long time to catch up.
Now, TaihuLight is not only the most powerful but is also the most powerful per watt after less than a year since last list. And that is both by a big margin. It must be very hard for some people to digest, like eating a rock???.