Are we comparing games that are already out (in some cases for years) with a game that comes out late next year? Be real now, which games are at a greater disadvantage? UC4 will likely see some polish and improvements, but it will look pretty much like what we are seeing now. Those games people are comparing hold up amazingly well considering how much earlier they released.
Graphics tech is always evolving and advancing. What about all the other games that will come out around the same time? The next Assassin's Creed? The Division? Star Wars Battlefront?
Honestly, that early Battlefront footage looks better to me than the Uncharted 4 footage. Will Dice pull it off? We'll see.