I do wonder how long it will take for clothing to look realistic in full renders. I believe that in a lot of games, a disproportionate amount of time has to go towards making capes and other loose clothes flow right. I bet that will be the biggest issue with video simulations until they figure that out.

Edit: After rewatching the video again, I think part of the issue could be solved by just lowering the quality slightly and having darker colors. The last one doesn't look as uncanny as the first two thanks to the dark sweatshirt taking away a lot of the detail.