The problem of SB is that it boosts the salary of big men for almost no profit. In fact, the number of blocks made by a player hardly exceeds 2 per game. The difference in the salary might be twice bigger, and in the higher levels it can be measured by $100K and even more. A way too much to pay for maximum 2 extra possessions in the game. So I'm absolutely among those who claim that SB should never be trained, and furthermore I personally prefer that it should not pop at all during ID training.
Ok, 2 blocks per game... How many shots are missed, but not blocked?
What's the improvement to the Opp field goal % allowed?
If players were hitting 60% on guy, but now its 35% and he gets 2 blocks per game... that translates to a lot more than 2 possessions per game.