cardio vs lifting is not proven one way or the other. Cardio over time does increase your metabolism and you eventually become a burner.That is runners and bikers are so thin.It is not what they burned that day, but what that day did to their metabolism that days.
Lifting is similar. It builds muscle, and muscle is what burns calories. So t is not what you lifted and burned today, it is what did your tear down and rebuild. Both running and lifting are long slow processes.
You should also realize that the greats of the past avoided cardio at all costs.They did only lifting and dieting.It was thought that their hard earned muscle would be metabolized by the cardio.
I agree.I read up a lot about the golden years in BBing.Although Arnold & Franco would regularly run together,but like you said most did zero cardio.