The Pakistani batsmen took utterly unnecessary risks and got out. Imam-ul-Haq's charge was the worst example as they were in total control with a "win prediction" of 94%.
Afghanistan's biggest mistake was their bowling of the 46th over. Gulbadin Naib brought himself to bowl and got smashed for 18 runs. That's when Pakistan won the game. When Gulbadin Naib decided to bowl the last over, it was truly over. Imad Wasim richly deserves his man of the match award. In the end, it was an ugly win for Pakistan since they made it so hard for themselves. But then, that's how they play: with MAXIMUM drama.
Afghanistan fought hard but they don't have the batting or bowling firepower to really beat ... anyone. They've played eight matches and lost all of them.
Pakistan is now at fourth position in the tournament. Their fans will be praying for an Indian win against England tomorrow!