I can see an argument for both sides when it comes to 'trick plays' in our game, but overall I think that they do belong in the game. Hockey has changed in so many ways, and recently. The game used to be about grit and size back in the 90's, even into the early 2000's. Now it's all about pure skill and speed, take a look at McDavid for example. Someone like that would get murdered by the Lindros' and Stevens' of the league back in the 90's; now he reigns supreme. With that, comes the ability to perform these trick plays and more often than we would have in the old days. In a way, the game just kind of evolved to let trick plays into (and stay) in the game. At the same time, it allows for more diverse plays and creative thinking for players and coaches. This also keeps defensive players on alert, and just expands the game overall.