The issue isn't the amount of attribute points you get (and in the original you got a lot more skill points essentially from bonuses anyhow) but that pooling into two main attributes severely weakened your character overall.
This is the one central problem with multiclassing in D:OS, and it will absolutely still be present in D:OS2. It's possible they could introduce a special multiclassing skill (eg allowing you to use intelligence for melee weapons), but this would simply be an awkward patch on a broken system.
The only way to allow true multiclassing would be to discard the primary attributes altogether. Use skill points and memory points as a limited resource. You can still create incentives for specialisation in order to encourage a class system without closing the door on multiclassing.
Anyway, the idea that PCs will be stronger that companions is not at all in the spirit of the game. Remember that drop-in co-op will be a feature of the game. All 4 members of the party will be equally important.
