It may be a hiccup in how they can code these things in this mode, such that squads that don't make a tournament are still forced to let the player know if they were selected for the national team. It would be more concerning to me if part of the mode's goals were to make the national team and your nation did go to a tournament with you being selected but then the games not show. I just assume there have to work with some limitations in coding and this pops up. Hopefully you'll lead the US to glory during the next tournament though!
I mentioned before it really sucks that we could actually sort player by nationality and countries without an international team in the game have enough players to allow for it. It would be great if they allowed us at the outset of a player mode or career mode to create more national teams, even if we have limitations on color schemes for kits and flags, and assign them to conferences. Have generic 'tournament' selection where now Concacaf could play a 4-team tournament (or if you have the 3 out of the box and made three others, you select a hex). If I'm remembering qualification in EU in the game is just a 6 team group that would be made up of teams already in the game anyway, so that capability could be done in other federations. But I'm wishin' to EA again!
