The contract you sign with the DRO could easily contain clauses obligating you to something conceptually similar to a "non-compete".
"Joining this DRO, I, the undersigned, fully acknowledge and consent to be bound by the coverage limitations for a period not to exceed _______ months, should I choose to terminate my coverage prior to it's natural lapse date"
There may be problems with this approach too, or there may be better or more nuanced ways of crafting such a clause. I'm not a lawyer.
The point is, really, that these sorts of "what about.." questions, are not really questions at all, but defenses.
If the maker of the video was seriously interested in solving the problems of a truly free society, he'd sit down with himself and brainstorm for an hour to come up with possible solutions to this problem, rather than firing off a rejection letter.