Single Button Gameplay?

[BenKenobi88]

Have you seen the Heavenly Sword gameplay, where she jumps back and forth on ropes, as the enemies cut them? Very impressive looking, but I don't know about the whole, press left, press circle, press square gameplay that's becoming so popular.

http://www.gametrailers.com/gamepage.php?id=1679

God of War did it a ton, and it makes for some pretty fighting and some great looking cinematic sequences, but is it a step in the wrong direction? I think it kinda takes away from the challenge, and it kinda makes things too simple.