I have been in the automotive field for almost 60 years and I couldn’t find anything wrong with how Randy did the oil change, I’m not going into my qualifications as I would be typing all day.
You could let the oil drip out for another fifteen minutes, but you wouldn’t get another two tablespoonfuls.
As far as pre-filling the filter, that is a good idea except the one Randy had, he couldn’t have gotten a quarter of a quart of oil in that filter.
The engine doesn’t run dry on an oil change as there is plenty of oil in the passages, oil pump and bearings to run that engine without damage until the oil pressure is reached, the trick is to pre-run the engine to get the oil everywhere then shut off the engine and drain, it’s those engines that have been sitting all night or draining the oil for an extended period that might have a problem.
I do disagree on the intervals between oil changes, the newer engines have much tighter tolerances and closed systems, you could wait a year, but the older engines require more frequent oil changes regardless of the mileage.
Because of, lets call it not very efficient tolerances, there are more contaminants induced into the oil and even with the engine not running everyday or for not very long, those contaminants, mostly water, produce sludge.
So I would say change your oil every four months even though you don’t have the mileage on it.
I hope this will add to a very good Video on oil changes.