I'll flip the script.
DVC might
only go after the family DVC member. It is after all, that very same group of members complaining to DVC. That group is fragmented and less likely to fight a DVC decision. By going after a few from that group, the others within it are likely to "back off" and stop pushing back against DVC decisions and almost certainly going to stop complaining to DVC about commercial owners.
Whereas the commercial owner group is not fragmented. They are organized into LLC entities with attorneys on retainer. They are far more versed in the laws, rules and nuances than the family owner. They are far more likely to engage legal means to halt DVC from taking action. They probably have deeper pockets to dedicate to a protracted battle with DVC. Sure, not as deep as DVC but deeper than the fragmented family group.
DVC might just pick a fight with the weaker opponent knowing it will kill two birds with a single stone.
Just playing devils advocate for a moment.