+1 to hit against orcs and goblins is just as good as +2 strength? So +2 Strength doesn't give you +1 to hit in melee against everything? Same goes with skill points, would you count having +2 intelligence as worse than +4 skills points at start-up and +1 skill point each level? Neither would I, since it's basically better. System is IMO flawed.
Also, I hope we can all agree that con is probably a lot more useful than cha, or anything similar. So the dwarf would not mind losing cha as much as he likes getting con.
Also getting an extra feat makes it a lot more customisable, which is good, since you want to customise as much as possible in order to min/max.
You could argue that since you get more feats in Pathfinder one more feat wouldn't be worth as much, but fluid +2 to a stat is very customisable.
I don't see any need to buff the human.