The sequence at 5:30 is a great example of why UWW needs a rule that you cannot "ground" yourself after you have entered the Passivity zone (Orange zone). I believe the offensive wrestler should be rewarded in that situation with a step out point. This is the language UWW uses regarding "grounded" situations (FYI, UWW rules don't use the word grounded):
In the execution of their started holds and actions, and which have begun on the central surface of the mat, the wrestlers can enter the passivity zone with three or four feet and continue their actions or holds in all directions, provided that nothing interrupt the execution of their hold (pushing, blocking, pulling).