I didn't like the Brazil game because i thought they were shockingly average, and i really thought Croatia deserved a draw at least. As you mentioned the PK shouldn't have been awarded, and imo if it wasnt Brazils 3rd goal wouldn't have happened. Croatia's defence was solid imo, Neymars first goal was just a strike from 20 odd yards before the defence could engage him, the Penalty shouldn't have been awarded, and Oscars goal was the result of an unjustly behind Croatia desperately plunging for an equalizer at the expense of their defence.