Even from my own perspective, as someone who's known this game since 2005 or so, I care nothing for the so-called history that you and Tom preach. A sense of history, like that of any fantasy setting, is of course important. But that sense is functionally the same whether it's based on eleven years of game play, just two, or entirely made up. It's not like the game world would seem any less fleshed out if it were younger.
You make a good point.
The continent with the best sense or atmosphere, creativity, and sense of history is actually the youngest continent.... Dwilight. Not the oldies.