From just watching that one, I thought they’d lost a bet, especially as the lighter coloured horse seemed to be a better dancer. At the end of the video (spoiler alert!) there are links to other videos by the same artist, so I wondered if it was part of a set about two just friends having fun, but then I noticed the length of the list of credits at the end of some of them. They can’t have been cheap to make. There must be some purpose to them!?!?!