I guess part of it is I don't think many from previous editions played Half-Elves as the negotiator/peacemaker that they seem to be presented as in 3.0/3.5. Half-Elves where somewhat outsiders, or loaners, or so many other things. And with the racial bonus, does it realy make sense even? (A human and a half-elf walk into an unfriendly dwarven town to gather information, with identical stats and ranks, and the Half-Elf has an easier time... because he's half elven?) Why not, for example, +2 to Survival and Slight of Hand because they've had to learn to fend for themselves? Technicaly it's the same skill bonuses, but it's a wider variety, opens them up a bit, and gives them a more unique flavor than they had previously.