I think ADF is not being forthright about their motivations. Their reasons for opposing Dispatch-from-home, while valid, are not showstoppers. They can be mitigated. Business has spent the last year learning how a dispersed workforce can collaborate. Those lessons can be applies to airline SOC personnel. Business continuity issues (i.e. power and connectivity) are easily resolved. A UPS or laptop battery will mitigate the power problem long enough to either fix the problem, or disperse the workload among the unaffected Dispatchers. Is a work force centralized at a known location any more or less secure than a decentralized work force whose locations are unknown?
It's good that ADF is seeing the downside to this, but they should be proposing solutions, not just raising problems.