Hang on a minute, CN. You said the aircraft on the runway had right of way. That's wrong. A landing aircraft has right of way.
Now, on to this incident, obviously the Dash should have given way to the lighty, and the lighty should not have landed with the Dash on the runway from Hempy's common-sense POV (which obviously I don't disagree with!). Until we know who said what and who saw what, we can't know who was in the right or wrong.