I actually think it works for them. He's better as a DM, but his reading of the game and ability to play out from the back are all they really need him to do. He's partnered with Laporte and has Busquets as a potential cover in those games. In addition, Azpi is also on his flank.
Spain's issue will come when they need their full backs as potential outlets. They won't be able to pin teams back as much as they would like to think with the full backs they have. Even if they try to, Busquets won't have the support he'll need to stop counters and right now he doesn't have the pace to keep up with those quick breakaways. Spain would need to really dominate the big games in order to win. They don't have the individual brilliance in attack or the box to box elements in a midfield. For them, my suspicion is that if they can't pin a team down ( which I'm not sure they can to the big teams this tournament given their full backs), they won't actually be able to create chances.
Both France and Brazil don't need to control a game to win it. Both teams can hit you hard on the break, both teams can break up play in more open games and both teams have individual creators