More shock and disappointment have happened throughout the tournament. This time it is Spain to experience it. No one expected Morocco to win against Spain. During the 90 minutes on the field Spain could've made the goals. They missed it and Morocco did it well finally. Upcoming matches are going to be very interesting, and here to some shocks can happen.
Now in the top 8 we will definitely see more interesting matches and of course Argentina against the Netherlands and England against France will be one of the interesting things to watch because these are indeed 2 big matches in my opinion.
Brazil and Croatia are actually one of the matches that I'm comfortable with Brazil because in any case it's an advantage for Brazil from all fronts but for the other two matches I find it a little difficult to predict.
Agree with what you said, but on the other hand, Portugal and Morocco are also currently a little more difficult to predict, especially with Morocco's slick performance and being a real dark horse by blowing Spain.
As for Brazil, they currently have a really good squad because their core players and reserves are all very good.