So we're going to ask the profit-motivated bad-actors across the web to pretty-please exempt us from your tracking because we asked nicely?
And we need to hide this away in settings and have it default-off because otherwise how will they know we really meant it?
It's like it was designed by someone with an early 90s understanding of the web, and no comprehension whatsoever of just how awful marketing can be.
Tracking should never be opt-out in the first place, and it needs to be fought with technological and legal measures, not silly http request flags.