I was thinking it could be a PR stunt. like if fans caught on, it creates and or makes it into a news story therefore bringing more attention to the song and original released video and views. And eventually they can release a second filmed video if its already near done and only needs color correcting and such. Regardless if nobody caught on and they didn't want to release they could just have went with the one, or what they could have done is just release two videos for more views as a video # 2. Either way its more talk about the song and more video views. It can only help.