I would ask him what inspires his setlists given their enormous catalog of songs.
Though honestly I think at this point, it's mainly about finding a balance between crowd pleasers and new material. They want to push it out and get it heard but they know a lot of their audience is still just there to hear "Rat In A Cage."
I'd just tell him I appreciate the discussion about Pale Horse and the more insight regarding his mother's illness. I was thinking about my grandchildren and their own mother during the discussion and listening to the song. I cried for my grandchildren and what they are experiencing. Can only hope a change for the better happens. Thanks for that episode and to tell you mom to enjoy her ride in the energy💫