Lets look at the play in question for example.
Timothy Liljegren had time and space to make a smart play and instead fired a rocket of a pass into Reilly's feet. The puck took an awkward bounce which eventually led to the turn over. On the ensuing 2 on 1, Liljegren failed to take away the shot or the pass, forcing
Matt Murray to stay square to the shooter. When the pass came, Murray had no chance of getting across the net in time to make a save. That goal is more on Liljegren than it is on Rielly.