It seems you never seriously played football. Losing 1-0 and losing 5-1 are two completely different things. In the first case you can still say something like that it was bad luck or that it just happened, especially against a team like Switzerland who is known to have a very strong defense. But that was not the case here. Even if you lose 4-1 like Atlético Madrid in the Champion's League final, you can still say something like you were playing all or nothing. But that wasn't the case here.
Spain got butchered. Not so much because the Netherlands was that strong, Robben and Van Persie showed they are still world class however I kept an eye on their defensive line and that wasn't good at all, but because Spain was in the 2nd half horrible, just horrible. Every football player has one of those matches where it seems like everything works, in this case for the Dutch, but the reality is that Spain just sucked balls. They did everything wrong, they didn't know anymore how to play football and yes if you then have people like Robben and Van Persie, well they will not show any mercy. Spain doesn't have an excuse. Even if Spain had a complete off-day, it shouldn't have been that bad. Their entire team crumbled. Attack, midfield, defense, keeper...
Losing against Switzerland with 1-0 was just a small accident de parcours, however losing against the runner-up from the previous world cup with 5-1, with 4 goals in a timespan of barely 40 minutes because you completely forget how to play football, is serious, very serious. Spain now already has the knife against their throat. If they lost 2-1 or 1-0 at least then they still have a guarantee of their qualities, but they completely cracked.
This wasn't just losing a match, but you need to be a real football player to understand that. Spain is still Spain, but they received a huge blow.