Its fan made!! The cinematics in the game are much better but these arent far behind. This video is of other events from previous games and books. The cinematics - in game and CGI - are amazing in SC2 man. Makes the SP sooo much better.
This is one of the SC2 trailers if you havent already seen it:
lol Abrar I think this video is actually recounting the story of Starcraft 1 so many of the events shown are probably before the events you mentioned. Kind of like side events that werent necessarily in the game but dont mess with the lore. I mean sure there might be inaccuracy but lol I doubt they would chance too much inaccuracy when all of the SC fan base would be looking at the video. Haha.