We aren't going to agree about the ad. I literally never saw it in Minesweeper until I went looking for it today, and it's clearly a generic CPM based display ad instead of something invasive based on your activity. Focusing on these nearly-hidden ads in ancillary apps seems like the pinnacle of bikeshedding to me.
edit: Not to say that your opinion is wrong or mine is better. I just can't get on board with all of the fuss I've been seeing lately about these ads. Having been using Windows 8 as my primary desktop OS for about a year, I never see the ads. I have to hunt for them to even verify that they're still there when another blog post pops up about them.