Why don't the views for Top Enterprise Hosts by Volume and Top Enterprise Protocols by Volume adhere to any group changes?
The equivalent report page in NFA would be the Enterprise Overview page, which shows the Top Hosts by volume and Top protocols by volume views.
These views directly in NFA do not adhere to any group rules or tenants. It works this way because the data for these views are stored in different tables in NFA then the rest of the interface data.
CAPC is pulling the data from the same tables which are not group aware. This is why Top Enterprise Hosts by Volume and Top Enterprise Protocols do adhere to any group related changes to a dashboard. This is functioning as designed