The "US Development Academy" is just a league. US Soccer is spending very little to operate the league. The costs to run the league are put on the backs of the clubs. There is currently a stratification in the works with the DA clubs: Tier 1 (fully funded, mostly MLS but also some non-MLS Clubs) and Tier 2 (pay to play or partially subsidized). The Federation doesn't really care if Tier 1 clubs are in Canada or Mexico for that matter because the Federation's investment is small and those clubs add to the overall purpose ... expose elite youth players to other elite youth players.