The intentional walk can occasionally serve up some unexpected surprises such as a hit or a throwing error, but a home run, where the ball leaves the park, has no suspense.  If baseball is willing to give up the intentional walk as pointless, then they should embrace the idea that running the bases after a home run is a  complete waste of time. There is no circumstance that will change the outcome of hitting the ball out of the park so why bother running the bases?