Given the changes in methods of education, it seems schools are likely not the best places for children on the upper end. It was always a slog to get through the day, and you got bullied and beaten up with the express approval of teachers and administration just because you stood out. There is really very little that schools provide besides day care and taking kids off the parents hands for the day.
Also, most of these methods are basically discriminating against academically oriented students. If they were not, you'd see similar proposals to have equal representation of, say, Asians in football teams or athletics teams and so on.