Because it's annoying to have that pop up everywhere and sometimes it decides you can't visit a website or need to wait 10s or so. And then again right after you click the next link.

And one day it might cut you off from half the internet for good? Hasn't happened yet. But ultimately it's a singular, big, ugly American company, now in charge of most of the internet. Including access to people's data/traffic when all they want is evade big tech.