His shot is pretty terrible, especially when compared to most NHL dmen. He pretty much never takes a slap shot, for that very reason. Yes, he can score the odd goal from the top of the circle, like he did at the 30-second mark in that clip, but he will never scare anyone with his point shot, which for a dman is unfortunate.
Not saying that he won't be a great player, but it is a very fair criticism to say that his shot is by far the weakest point of his game and something that he hopefully improves on.