OK now, don't anybody take this too seriously! This is getting to be fun! So here's what I have to say about that,

What a pile of bullpucky!! Not buying a bit of it.

Why not demonstrate that you CAN, land the model in a realistic, smooth, controlled manner like nearly all powered aircraft do, with the engine running? Why not show that you CAN complete the flight with a high degree of finesse, displaying complete control by returning it under it's own power to the point it began it's flight? Why not show that you CAN extend your mastery of the entire regime capable of the aircraft? Why not show that you CAN tune your aircraft's system's to allow all operations? Why not extend the satisfaction of a flight well done, by showing that you CAN maintain your excellence by landing and clearing the runway quickly for the next flier?

Here, IMO, is what's happened. Since F3A quit judging the take-off and landing, many F3A pilots have gotten slack about ground ops. Their example has trickled down to the AMA classes.

You think when Patty Wagstaff or Sean Tucker complete their routines, they shut off the engine and have to be towed back? At least Bob Hoover, when he would shut off his engines during an airshow flight, would have the decency to taxi it back to the ramp!

OK, what's next?