Exactly.
Croatia is not that strong--they lost both games against Scotland in the qualifiers, and against Belgium at home. They had to compete in the play-offs in which they weren't very convincing against the average Icelandic team.
When Brazil faces stronger opposition, they will be taught a...
1. there should be no penalty (that much I hope is obvious for everyone)
2. 3rd goal for Brazil was scored after a Croatian player was fauled in the midfield (which was completely ignored by the referee)
3. Olić was coming out on a clear position when he was fauled--should have been a red card...