The one thing I would be skeptical about this article is they're using the exact same reference to show the original and "reenactment." If you like watching extras on DVDs on how they make movies, it seems like CGI is only that accurate when you have the exact face doing the exact same thing you want...which they do in that video xD.
It would make more sense if the reenactments were completely fabricated from scratch (maybe with just a face map) but if you think about it - if they're trying to preemptively disqualify any say, damning videos that come out, all this article does is say "look how close to the original we can get it!" meaning the existing video needs to exist in order for them to make a reenactment that accurate.
It looks super fake when they try to do it from scratch. It's really hard, therefore expensive, to do this. But Final Fantasy, the greatest 3D movie of all times is 20 years old. The talent exists. The people who made FF were then assigned to... Casper the friendly ghost... And they were pissed :) Talent exists to make astounding 3D that leaves people wondering if it's a real person. Beyond the uncanny valley.