Lost his starting spot to Molina at Monterrey, though Gonzalez still gets a lot of minutes. Not completely surprising he wasn't in the squad. He is, however, on Osorio's list of prospects for the future: http://www.marca.com/claro-mx/futbol/seleccion-mx/2018/05/14/5af9d806ca474168178b4632.html

Also, to be a little critical, that midfield doesn't exactly send shivers down the spine of opponents.

Biggest omission, IMO, is Gallito Vazquez who has been one of the best d-mids in Liga MX and I'd take over Molina. But Osorio gonna Osorio.

As for the rest, there's some quality there: Hector Herrera is the captain for a Porto team that just won Liga NOS. Guardado had a great season for Betis. But Mexico will live and die by the ability of its mediapuntas/wingers: Aquino, Tecatito, Vela, and Chucky Lozano.