It would be impossible to implement co-op due to the games design and engine.
Also in fallout 3, I found super mutant brutes at level 2, and I'd rather have ogres with 900 health when my resources are amped, then have my ass shot up by a missle launcher a few in-game hours after the tutorial.
EDIT: I'm aware of the pale pass ogres, and I do think the attribute distribution system should be changed to
1-2 skill points grants a +1 bonus
3-4 skill points grants a +2 bonus
5-6 skill points grants a +3 bonus
7-8 skill points grants a +4 bonus
9-10 or more skill points grants a +5 bonus
Luck of course, being exception.
as apposed to:
0 skill points grants a +1 bonus
1-4 skill points grants a +2 bonus
5-7 skill points grants a +3 bonus
8-9 skill points grants a +4 bonus
10 or more skill points grants a +5 bonus.
Also add the ability to summon more than 1 err... summon.