Interesting Jim, that he says to come to a stop. Seems like that used to be the suggested/preferred method. Now they say on the fly ,anything under 50 mph or so. Personally I won't go over about 5 mph , worrying about all those expensive gears.
Come to think of it, I believe my 2015 Silverado manual says to be moving to make a 4 hi shift.
I am with you on the fluids, and filters. Inspite of dial soap and dryer sheets, mice or squirrels have found my cabin air filter, packing it with seeds and grass
I agree—there's no reason to come to a stop to shift into four high, especially if you're pointed straight ahead.