Is this the best sports video ever?

Hibs won the Scottish Cup in 2016 for the first time in 114 years with an injury-time header. After the initial madness had subsided, the fans sang, in my opinion, one of the best songs ever heard at a football game. But the song was too slow and the most popular video of the event on YouTube is terrible quality. So why does it work so well and is the video so popular?