I really only listen to sawbones but I asked my wife who is a fan and she thinks it isn’t true because she has a vague memory of the McElroy brothers of having done an interview with Chuck Tingle’s son. I asked if they could have just hired an actor, but she doesn’t think it was a bit because the son was basically like “my father is a schizophrenic and this is how they work through their sexuality.” So not funny necessarily.