Except that actually isn't right. You miss exactly 0% of the shots you don't take. And I'm not just being pedantic. In basketball this attitude can cost teams games. Any game of possessions (of which basketball is one) is won with efficiency. Shooting the ball means there is some chance of scoring but also some chance of missing and the ball being rebounded by the other team. When the latter happens you've lost your opportunity to score and you will never get it back. So the key to winning is to take high efficiency shots-- this means shots that are likely to go in and shots that are worth a lot of points. Now not shooting does increase the likelihood of a turnover and one can't go on not shooting forever. Moreover, quick shots before the defense is ready can often be very efficient shots. But the key is that the game is not about scoring a lot of points-- it's about scoring a lot of points efficiently. And to get good at that means cultivating a skill of waiting for the best shot, creating a better shot or deferring to more efficient teammates.

It might be that these aren't concerns in hockey: if all shots are more or less equally efficient or if a lot of points are scored of offensive rebounds "keep shooting it" might be a good message. I don't know a lot about the sport. But even hockey players aren't shooting from the other side of the rink.

Outside sports there are occasions where 'missing' is worse than 'not shooting' and if the chances of 'missing' are high enough or the cost of 'missing' sufficiently high it can be a really bad idea to 'shoot'.