Actually I agree. It's not that their game won't be any good. However as a developer you have to please as much gamers as you can. split-screen is a feature that is and I'm certain always will be a feature that is very welcome. Uncharted is one of the best games this generation. Gamers should be able to play this game the way they like most. That's the way it works. Graphics, more effort so be it. That's just the way it is. I believe that complaining is a good thing. If we don't complain nothing will happen. It's not that we entirely dislike the game.
I totally disagree with their statement. They use graphics as an excuse. If you ask any gamer on any forum what's more important? Gameplay or Graphics? You'll know the answer. You will also know that forum members know that the majority chooses the otherway around. The funniest part is that the majority doesn't play online that much. They are not that addicted to playing games. Playing online is a solution when gamers don't gather togther. It's the social aspect that makes gaming compleet. Yes a microfoon helps, but it's still a solution, we all know better.
Hmmm wonder why Nintendo is so succesfull... They know what gaming is about.
I really doubt heir engine won't be able to do this. Actually I'm expecting splitscreen in Uncharted 3.