I understand the concern, but the site administration has several plans to ensure continuity in the project. Of course we don't know the future, and a lot can happen. But, for now, as long as another operating model is not possible, this model is assured.
Two admins and three global moderators who can be promoted to admins if necessary, in human & moderation resources, the forum has enough to do its continuation.
For other risk factors like forum seize by government, by banning mixers proactively, I see theymos and even Cyrus already saw that risk and eliminate it by that 'big decision' which surely does not satisfy all forum members but for forum future, eliminate that big risk is good.
For other risk factors which are insignificant or non-existing now, we will know more in future and more things will be done in forum administration and moderation to adapt to future changes and challenges.