The elimination of trade teams helps out the smaller countries when it comes to getting qualifying points. When a rider is part of a trade team, their points stay with them, and the national national federation gets to use those points. Countries that don't have riders on trade teams must shoulder the full brunt of fielding riders and getting qualifying points.
There are only so many points available, and a country can only qualify so many riders. Essentially what ends up happening is the powerhouse countries get to double dip on points despite already maxing out the riders they get to send. This leaves the smaller nations to scrap over an ever decreasing supply of points.