I've advocated for this for a long time, and it's good to see some progress on this front.
If you use much more electricity than others connected to the same grid, then you have to pay more than the others - not only, but your electricity usage is likely to be throttled to prevent starving off other users of the grid.
Similarly, if most of the content that travels on optical fibers comes from your servers, then you have to pay a premium for the share of bandwidth that you're taking away from other users.
A more sustainable and scalable Internet needs to raise awareness on the hidden costs of moving data from A to B. Big Tech can't get away with pushing more and heavier content to users assuming that the distribution network has unlimited resources.
There's something functionally and morally wrong with having simple mobile app that weigh 100 MB (as much as the whole core of Windows 95 used to weigh). Or ads that start playing videos without any user input. Or webpages that do 20 different requests to data brokers, analytics providers and ads platforms for one simple original page request. Or JS projects with a 300 MB node_modules folder created even if the project is just empty. Or simple text shared on social media as images, making the difference between a few bytes and something within the range of 100 KB - 10 MB.
Forcing people to pay for pushing this crap down a wire, or wasting the limited space on people's devices, is really the step zero to achieve anything that resembles sustainability on the Internet.