In my own personal interpretation of the SD pattern (I've studied it a lot), both the toss and the one last point are trying to get you to do the same thing - that is, to make the proper release for the SD pattern, given the setup and takeaway you have already executed.
What is interesting is that for me, the toss is not helpful at all. When I think about tossing, I just get flippy. For other folks, I am sure the toss is crucial. But the cool thing is that if I execute the backswing and counterfall and then move from there to the "one last point" I find myself in a pitch elbow position along the way. But if I try to PUT myself in a pitch elbow position, I do all sorts of AWFUL things.
So after spending about 3 years working on the SD pattern in various ways, I now feel like I have my own, personal, modified version of SD. It starts out just the same, but it eliminates the toss, it interprets the counterfall somewhat differently (I have to make sure not to counterfall such that I get stuck), and it adds just a bit of COFF material (I need to make sure I pivot hard through impact with actually fairly quiet hands). The great thing about Brian's teachings for me is that he puts patterns out there that are designed to be customized. My customizations wouldn't work for other folks (I have a tendency to be handsy, and I can flip my way to single digit handicap golf), and I'm sure other folks have modified Brian's patterns in ways that would only mess me up. But we can all work from the same patterns.