Windows historically came installed with Pinball, Minesweeper, Solitaire.
I would guess that a substantial base of Windows users plays games on their PC. It's rare to find a popular game that isn't enhanced by the internet.
I do tend to agree that maybe Professional versions should not come with these _links_, but even a large portion of professional users play games on their company issued laptop. I haven't installed Windows Server before but I would be surprised if that featured game links.