Tail can be seen on the video. it is noticeably shorter than the cheviot ( prior to docking) more primitive like.
So it is
Looks to be about half and half between primitive and Cheviot. It has something like the proper Soay pale marks around its general bum and belly area too.
Notice that the farmer - who also manages the pub (does that say it all?) - says he saw a goat 'as far as I could see', doing the deed with the ewes.. I don't think this will go down in the annals of amazing true stories, but someone will believe it