TML fan said:
Defencemen are taught to use their stick and skates to block the pass. They are also taught to take either the shooter or the open man, not just to block the pass. They are also taught to be ready to clear rebounds, which is pretty impossible to do laying on your face.
The fact that defencemen drop to the ice often doesn't mean it's the right thing to do. It's what happens when you panic. These guys are pros but it doesn't mean they don't make mistakes.
No, they're taught specifically to take away the passing option so that the goalie doesn't have to move laterally and find the puck on another shooter's stick. The goal is to allow to goalie to focus on a specific play. Sometimes, that means making the player without the puck a bad option, and sometimes it means doing whatever you can to get in the way of the pass. It all depends on where they are in relation to where you are, the speed of the play, etc. Gardiner made the right call. He just failed to execute effectively.
They're not taught to worry about rebounds on a two on one, nor are they taught to rely on the skates and stick to block a pass - in fact, doing so often leads to them deflecting the puck into their own net. Their priority is the minimize the quality of the scoring chance, and to turn the two on one into a one on one between the shooter and the goalie.