The percentage of actually making the ball is quite low and look at the stack after he breaks. Clusters and typically moves the balls out of the rack to the side you break from. Very difficult usually to BnR from a break like that.
Nice post for your first post. Welcome. The one thing he says that may be important is speed. If you try to use that side break with max power, you will have the cue ball leave the table or scratch a lot. Plus it take a good hit on the second ball. It can actually be a bit risky. To be honest, for the few times you will actually make the 8 on the break, I would rather just break hitting the head ball.