Again you don't know that all of the combos are available yet, you also don't know how enemies will adapt to button mashing later in the game. You could argue that in DMC4 the first level or two are simple button mashing affairs but in the higher difficulties against tougher enemies it's anything but that, every move must be meticulously planned and executed. I anticipate this game to evolve heavily as you progress, i also expect the higher difficulties to prove a great challenge, it's not uncommon for an average game to get a couple of good reviews but this is getting so many gushing reviews there's obviously a lot more to expect from it.