I agree that Corso needs to let it go, atleast for the rest of this year. He might can regain his abilities for next season, but I'm not sure. They could just use him for pick/headgear segments for the rest of the year and even next year (since that is his signature thing). It looks like Desmond is next for the booth. Today looks like they are really grooming him for Corso's chair.
As far as Corso getting choked up, as a stroke victim, I can tell you it takes a while to deal with it. It is as close as a man comes to dealing with his own mortality. Corso sees himself and Bowden, especially by that interview, not being what they once were. He just hasn't had time to digest it all.