Mind blowing Assassin’s Creed fan made trailer

Since when did fan-made trailers start turning out this good? Check out this mind blowing trailer for the Assassin's Creed franchise by youtube user, hamps19. He says in his description,

I'm a huge fan of the AC trailers, especially the UNKLE "Lonely Soul" and "Burn my Shadow Away" ones and wanted to do something similar in how they're basically just music videos. Plus, every fan made "trailer" or tribute to the series I can find is always just boring mash-ups of Ubisoft's official trailers and I was sick of seeing those.