Interesting that they didn't ban consoles as well/instead, because those consumed more than twice the power of PCs in the same time frame.
I wonder what is your source on the power consumption of consoles being twice as much as PC.
PS5 power consumption:
https://www.thehomehacksdiy.com/how-much-electricity-power-does-a-ps5-use/
Idle 80W (a bit high but not double).
Games, 180W
2060 Super (similar processing power)
https://www.techpowerup.com/review/nvidia-geforce-rtx-2060-super/30.html
GPU only,
Idle 8 W, (probably around 50~60W with the whole PC).
Games, 184 Watt (probably around 250w total).
I think the banned PC is based on I7 11900K and 3080 or higher. Those can consume 400w+ on average when gaming.
Now, let's see Switch, it consumes ~10W on handheld mode. Of course, the graphics are not comparable, but the power consumption is awesome.
Hopefully, future PC hardwares and consoles will be more power-efficient.