An acrobatic block tackle, should have been a card or not?

This action happened during the final of the 2014 World Cup. By the time of this action, the local team was losing by 4 to 1 in front of 15.000 fans so, we understand the Dutch player’s frustration. 
Seve van As made a cartwheel over the Australian player who was flat down in a block tackle position. He got awarded a free hit but he expected a stronger sanction. What do you think?