Watch_Dogs looks fantastic on the PS4, and Microsoft apparently agrees. So much so, that it looks like they used PS4 footage to promote the game on their official Youtube Channel.
Or, more likely, someone at Microsoft made a pretty big mistake. The video, which had been up for months prior to its recent disappearance, had gone by without any attention to the error. Only recently did watchful viewers notice that the button prompts in the video displayed PS4 buttons.
Microsoft has recently uploaded an edited version of the video, hoping to sweep the whole ordeal under the rug.
Source: reddit