My observation, and I ran this by someone who had worked extensively for years with the National Guard Bureau, is that following the draw-down from war fighting in two wars, the National Guard as a whole has turned their attention to what they call "domestic operations." This can mean many different things, but in our world — it is emergency management.
I have not done a state-by-state inventory of who is in charge of state-level emergency management departments, but it has averaged about half the states here in the USA being led by the National Guard. In most cases this is the Adjutant General who is the top person, typically a two-star general leading emergency management.
Unfortunately I won't be able to tune in for this particular webinar because of scheduling conflicts, but it should be interesting to see what they have to say. My "eyes perked up" with this item, "How does the Internet of Everything (IoE) begin to inform the daily activity of TAGs, with the torrent of continuous data streams, and the organizations they lead?"
