Military families don't have a choice of whether or not it's worth it to move to another state. The military member HAS to move, he has no choice in the matter. Military families are separated so much over the course of a career for deployments, unaccompanied TADs, etc. I think to expect a family to stay in one spot while the service member moves from place to place is unreasonable.
Sorry -- I had meant to put that in my original reply and forgot.
I would agree that if the Gov't tells you that you are moving from X to Y then you don't have a say in the matter. I would include an exemption for a military spouse that moved as well (assuming they were working someplace else at the time of the forced relocation) for all states even if normally a 'trailing spouse' wasn't covered for benefits.