Well in my opinion I really don't think it's FIFA that has brought about the increased quality in football it's more about the clubs because that's were players play their trade every single season. It's mostly how players perform from their club side that will determine if they will be selected to represent their country in a FIFA organised competition. Yeah, it's true that Asian players are now trying compared to previous years. I believe Africa players has always been trying because we have been hearing of many African players names decades ago and still now.
African player have always done the best they can to the best of their abilities only that it has never been the same as the way it has been when they go to their club sides and they are given the enabling environment to thrive, they actually perform far more differently because at that point all they need to stay efficient is provided and that is where even the countries see their performance and give them an invite to join the national team and represent them in competitions.
Originally the Asian countries aren't known for possessing some extra ordinary football talent enough to possessing brilliant football prowess but ever since they began to move to the European sides and have been playing on some other international arenas, their performance has improved greatly and soon they will be making waves in football like their European counterparts.