Let me rephrase what I said in light of the recent forum meta here:
You don’t need to have a high value for any particular stat at all. You can get through the game just fine with a unique play through at that. BUT it would be nice to have a diverse ability spread across your party, that is, not having EVERYONE based around 1-2 attributes. For example, I wouldn’t want to miss out on perception checks because I refused to put anyone’s points into Wisdom. Fundamentally, however, you can get through the game fine with whatever composition you want, even 4 fighters with maxed out STR and CON while dumping WIS and CHA.
And therein is one of the issues with this game, can party members be used for dialogue skill checks? If they can then it doesn't matter what your player character has.
Things like perception, arcana, lore, religion, your party members can handle while in the the wilderness. During conversations, does the game still only use the player characters skills / stats?
