No idea how NBA stat corrections work. The NFL, there's a hard deadline. In a league that's probably/most definitely rigged, there appears to be no such structure. Fast and Loose, the David Stern legacy.
I know there were some grumbling about streaming during the playoffs, and I don't really care if the roster move total is lowered, but I will say this - 1) I earned that roster flexibility in the playoffs by drafting well and making minimal moves during the season. 2) I think there's something pretty awesome about losing your no. 1 pick (The aforementioned Brow) at the beginning of championship week and still winning the title. (Furiously knocking on wood.) That only happens because of smart, targeted streaming.