"I would suggest either going back to that system or making memory attribute points count for more slots so that you can have a variety of skills in combat."
Thats exactly how it works. (they cannot go back to the previous system, only improve this one)
You can take a "mnemonic" talent early for your character or other companions, which gives you more spell-skill slots.
Besides that i am also of the opinion that default and locked racial talents that give +2 in attributes should be removed or made into normal talent choice. (preferably removed completely) I already made same suggestion that racial talents should be something colorful and we get to pick two talents at the start, instead of the current situation.
Personally, i find the new dialogue style quite refreshing and i quickly started to like it.
It enhances the sense i am playing a character, - not myself, which i prefer in RPG games.
You gave some nice and useful feedback i think.