Having a larger AP pool and spells costing more AP allows you to more finely balance the AP cost of spells.
Divinity original sin 2 is unbearably unbalanced. Bless/curse cost 1ap and auto fix any environmental situation with no thinking required.
Rogue can clean up anything and everything and Adrenaline is busted with the current AP system.
Rather then building resist now you can just build magic Armour that blocks all statuses?
I love the first game, and i hope this game becomes just as great, and it's not all bad. But i feel this game has a bad case of trying to fix what's not broke resulting in some bad unnecessary changes.
Race for example was a good idea.
TLDR:
Old AP system is easier to balance.
