Just curious, but what's wrong with the ones already listed in the species feats?
Absolutely nothing, but in a world where history has the Elves being a downtrodden second class [as stolen from Dragon Age], they will be more likely to turn to crime. Or a world where goblins are known as the great builders - they aren't likely to all be Priests and Lancers.
My other thought is that in some games some sub-species will vary enough to not be "Elves, but with keepers".
I don't think there's anything wrong with the ones in Species feats. I think that Turnip is trying to make the different subcultures behave differently in his setting in such a way that theire representative members are extra different and not just a little different.
However, adding Burglar to iconic classes for Vanilla Elves is actually a major boon to the race, since they're actually pretty ideal for it...just be careful with that, since it takes away what would normally be a penalty that costs feats/AD.
First paragraph - bingo! Exactly my line of thought, it sorta came to me while I was writing up cultural information for my players about every race and subrace in my campaign world.
Second Paragraph - Most of this was spitballing, and I had yet to think through balance issues from certain combinations. This is one of the reasons for the thread, other views on balance factors.