In fairness, watching the replay now, the Pakistani bowling and fielding has been rank awful from very early on. Wahab got Hales and Buttler on no balls, they've dropped a bunch of catches and fielded like a Sunday pub side. It's a flat track but Pakistan have basically given the Poms hitting practice. They just keep putting it right in the slot or bowling full tosses, guys like Hales and Buttler must have thought it was Christmas.
Obviously pitches are getting flatter, but the way Pakistan played England would have scored 350 batting on the infield to be perfectly honest