So, I think there are a few things in your argument I disagree with.
(1) I don't think " VolNation" was being tested, as much as all of VOL NATION. This site is the free site with the greatest accessibility, and thus ease of tracking actual interest.
(2) The purpose of testing the waters was to add value to the proposal. In a vacuum, offering a deal is a reasonable thing, but with the added data from this type of social experiment you can solidify the case.
(3) To a point you made later - using a data polling service would accomplish the opposite result. The purpose of the stalking horse is that no one is aware. If the pollsters were calling people in Knoxville asking about head coaches, it would immediately give everything away.
I think the analysis is correct, as far as Beav is concerned. He is assuredly the Stalker Horse. However, I'm not sure who actually sent him. It's convenient to say Ergen, but it could be just about anyone.
He did say, "These people don't miss." This type of maneuver could be part of that. People who don't ever miss in big transactions have contingencies out the wazoo. This popular rabble-rousing may be part of those contingencies.