No, it just means that her personality fit the storyline for this cycle better than the last one. They knew she could win the first time around but wanted someone else to win because maybe it was time for a blond and not for a Latina. But now, America is ready for another "other" winner.
I mean, there are a bunch of writers for this show and at least ONE of them must pay atention to the news, the political discussions on immigration and the "latino" community becoming the new non-white majority. Also having natasha, accent and all, on the show at all, then in the final two, couldn't have happend until now. People are more ready now to accept the constantly changing, growing melting pot that America is (like Natasha so nicely said) and, btw, has been since Christopher Columbus and other European conquistadors.
Just like they asked Nargis to come back and audition for cycle 3 (even though they didn't pick her the second time around), they asked Jaslene to come back for another try, because they liked her. It was her time, that's all. Not a better or worse model than last season; just a better fit for the REALITY SHOW.