Well yes the game was not intense indeed. But both teams were playing to not risk the game, both of them, this made it "boaring". And yes you need to be scared of Messi believe me, this will be the biggest game of his life, and he wants to proove that he can be a high player such as Maradona, Pele etc. And I'm not sure if Di Maria will play but if he plays there is another high-skilled player, you may win but not as you won vs. Brasil.
A lot of people are just impacted because of how Brasil lost, but the problem with Brasil is that Scolari based their game with Neymar, I from the beggining of the game without Neymar I knew they were going to get destroyed.