So that there's plenty to send when they oops-accidentally forget that setting during an upgrade, and ask you to set it again. They will of course assume opt-o

So that there's plenty to send when they oops-accidentally forget that setting during an upgrade, and ask you to set it again. They will of course assume opt-out rather than opt-in, and send what they've collected the moment the browser launches, then they're ready to give you the choice of opt-out once again.