Looking at shot differentials is the same exact thing, which is why it drives me up a wall when people tout it.
it helps when you have better players shooting the puck. And what do you know, the player on the team that's best at that hasn't been playing.
People have been providing context with the shot chart and with watching the games.
Look at last game, not only did the Devils have many more shots, they had many more shots from good spots. They hit another post, they had the goalie making saves where he's just hoping the puck hits him, and they missed some chances. All those things don't keep going wrong, unless, overnight, almost every player on the Devils magically became half the shooter they've always been.