Its not better if I cannot make my own spells, with its own duration, effects and potency.
Its pretty useless to only have one fire spell and have it level up with me, or worse, having to 'charge' it a la fable.
Muffins are not pancakes.
So you think it's better to have a whole "book" full of spells just so that each one can be slightly more powerful than the next without having any dynamic, in game way to do that?
If that's your opinion, fine. But just because you like it doesn't mean it's better. Even still, like I said, it has changed, not been removed.
Also:
Levitation - Taken out because it had to be, the nature of cities changed so levitation can't work any more. The whole world space has been redesigned in a way that makes levitation very exploitable.
Is it possible they could have changed the effect to make it work? Sure. But they removed it. I'm not saying that this is good. Levitation is a perfect example of what I'm
not talking about here.
jump, slowfall, mark/recall, lock, sanctuary..
All spells, removed for one reason or another. I don't really see the point of listing things that have been removed when I'm talking about things that have not.