@Deadknight
I'm not sure how you did your math but with that example :
80-100 * 2.40 (34 in Primary stat) = 192 - 240 Overall damage range so 216 per attack average. In 100 hit, you do 21600 damage.
Now with 10% crit from +2 wits :
80-100 * 2.20 (32 in Primary stat) = 176 - 220 Overall damage range so 198 per attack average. In 90 hit without crit : 17820 damage and 10 with 1.5 crit : 2 970. Total dmg : 20790. average : 208
That's 3.9% more dmg for primary over wits. And again, finesse for instance gives % dodge. Strengh gives armor, for a tank late game it can be nice.
Not to mention that not everyone care about crit, you said rogue but not only. Mage don't really (even with talent it's 50% less), tank, summoner. That's a lot of possible character already.
And finally, I prefer having a constant dmg than RNG crit.
@Baardvark
It doesn't stack.
On a side note I don't really like that ability. Every others racial are something unique that only the character benefits from. Human racial cost 1 ap for the character and gives a bonus to everyone. Since all your party have it, it doesn't feel unique, for me at least.
Beside it was a warrior skill in DOS 1 and now it's for human only ? Meh.
