The rule states you can't let them up to their feet directly from their back If I am thinking correct it does not say anything about letting them roll through.
There is no such rule in the NFHS Rule Book, Case Book, Manual, or the USAWKS Kids Modifications.
That is just another myth that is perpetuated every year by various groups of people. It's the same people who think that the offensive wrestlers HAS to take the opponent down in rear standing position, and that they only have 5 seconds to do it. Its the same people who think you can slam your opponent into the mat as hard as you want as long as the person doing the slamming hits the mat first with their leg, etc etc.
Letting someone directly off their back to their feet is no more unsportsmanlike than letting them roll to their stomach and letting them back to their feet. There are some officials who will interpret the unsportsmanlike rule as such and that is their choice, but it is not a rule infraction according to the rule books we follow.
