Yes, I also submitted a feature request regarding this issue. The setting options in Orion are misleading. We like to see additional options to configure group with partial nodes status. Also, if there are sub-goups, we like to see parent nodes reflect same status as child. We expect this will implement in next revision.
This will make easier and faster to find problems with interfaces. If you have an idea on Thwack, please send the link, i'll vote for this idea
what happens if you add the interfaces on nodes that are members of the group to the group?
I don't want an interface down on a node to cause the status of the group to become down unless it (the interface) is explicitly in the group -- I have routers and switches with hundreds of interfaces, and any one of them is almost always down.