The E3 2012 demo, was just that, a demo, a technical demo. Ubisoft tried to show their idea of next gen in a gameplay demo. That demo was scripted despite being shown played by a guy. One thing is to show a scenary where everything is scripted and other thing to achieve that level of detail in a big open world game.
I can understand it, i'm not expecting 2012 levels, but what i was expecting for PS4 launch was E3 2013 levels, and after the delay, at least some improvements, but in that video, not the gif, the actual video showing gameplay, there was some bits that looked awful, not for an 8th gen game, but even for an 7th gen game....
If that video doesn't represent the final quality of the game, and was bad compresion of youtube/gifs or just bad timing of graphic events, and in the end looks like everything we saw in 2013 then i will be satisfied.
It's just 2014 and we can't pretend to get the best ps4/x1 can offer already, i'm not that impatient and unfair.