I'm not saying it will not mean there is more variety later in the game. It's that they limit the moves so people feel there's more in the game than there is. DMC did this like I said and it made sense for the PS2 era, but if I start out with the same amount of moves in this game I will rage. And I don't see how starting out a game with plenty of moves or options will deter players from learning what the general combat concepts are. Dodge, attack, launch aren't that hard to learn off the bat Both GOW2 and GOW3 start you off with a complete move list for your blades and that didn't deter people from learning the combat (which you then lose). This isn't a strategy game where you need to be walked through every step, its an action game that seems pretty straight forward, especially when you don't have hard lock on style moves (and looks like directional moves don't exist either). This limited options start is an old development style that has been carried on to this generation (yeah!), and like DMC4 it shouldn't be repeated. But it will because its easier to take away moves than to add more moves. Its probably why I enjoy playing games like Civ4 that even at the start the variety feels overwhelming.
Thinking they did that just because "it was the PS2 era" is absurd. It makes little sense to blame start-game movesets on the era, because that doesn't explain how the endgame movesets fit in. How can the "era" be at all responsible for how many abilities a game starts you with?
"Limiting moves" isn't about giving the illusion of greater variety by the end, and it's not game-padding either. It's growth, it makes you feel as though you're actually working for something. Sure there's things like Kingdom Hearts that have a multitude of character growth elements, but it's not strictly something that's only done in RPGs. Mega Man is a perfect example, or more prominently, Mega Man X - it's all part of growing stronger, and Devil May Cry does this by purchasing new moves with Orbs, the acquisition of which is made easier the better you master the abilities you already have at your disposal.
Man, I'm really starting to think that so many people are completely blinded by the complete post-game world of DMC that they forget how it all starts :/