They have been doing this for at least a year now. They have one that tries to trick you into thinking that it was already updated and you have to finish setting it up. It takes several clicks on tiny hidden buttons to escape it. There's no option to tell it to fuck off forever. They'll pester you again a couple weeks later.
Dark patterns were outlawed years ago, but the FTC has to enforce it. My guess is that Microsoft either designed it in such a way that it barely meets the requirements, or they figured it won't matter because even if they get caught, the fine will be less than their savings/profit.