What's all the fuss about. It's an optional mode, if you don't like it play it in standard mode. It isn't a reason not to buy/play the game.
I think it's there to make it easier for players to get the platinum trophy (PS3) / all the achievements (360).
Personally I wasn't particularly drawn to the game from the outset, this feature does nothing to change my mind positively or negatively. AAA reviews might get me to rethink though.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix