Just remembered something. Wasn't TLoU suffering from the same issue? The original, I mean. The game was gorgeous but more so in motion. That game didn't look as good in screenshots cause of some sort of motion blur that occurred whenever you moved the character a little, making it seem blurrier than it really was. I think there was a thread here about it, but I'm might be mistaken. I remember people commenting on that.
I'm still trying to wrap my head around this one. One or two bad screenshots can happen in almost every game, but that godawful bluryness is in every single one of them. Maybe this game looks better in motion, it's just that we can't see it through youtube compression. I'm just trying to understand (or maybe find excuses) on why this looks the way it looks. The only other option is that Ubi was once again lying and taking us for idiots, which I can't for the life of me believe. They never lied/downgraded before, have they?