Neither Charisma or Bartering are really important; your impressions are correct. Bartering may be more useful after the large balancing patch (no ETA) when some issues with the game econemy are addressed.
Crafting and Blacksmithing can be quite helpful, but you can also get by without them.
Lucky Charm is nice to have, but not essential.
Personally, I prefer to be able to identify items right away, rather than batch identify and sort later at a merchant. It isn't essential, and you can get a couple levels of Loremaster from equipment bonuses.
Telekinesis is handy for looting, and makes it easier to reach some items.
Pet Pal gives you access to additional quests, or alternate ways to do some quests, and some hints or flavour text.
