I'm guessing that the Brazilians are more angry with their own team. If the German's had pulled a "hand of God" to win it, it would be a different story.
I’m thinking the severe drubbing the Germans gave the Brazilians will encourage angry Brazilian fans to return the drubbing on the streets, especially to loud, boastful, partying Germans.
It happens all the time after football games here in the USA.
The opponent is always the enemy. Brazil will be looking for payback from now on. The Brazil/Germany rivalry has begun.