Gary,
The close up is the control wire that goes to the rooftop satellite dish. On my 2011 Landmark, which was made a little before Heartland started including the control wire, the plate with 2 coax connectors and signal booster switch is as you suggest, located by the TV. I'd speculate that Heartland moved it to the closet so the control wire is not dangling out of the ceiling in your bedroom, attracting attention. The downside is that more than one person has had difficulty find the signal booster switch which is now in the closet as well.