Makes sense. My commute to work is about 8 miles, fortunately mostly allowing for highway speed. I try to avoid short trips, and especially short moves as you describe. I try to drive conservatively for a couple of minutes and then hit highway speed. I think my commute allows the vehicle to warm well enough . I think I will order an Amsoil oil sample kit which allows me to obtain a sample through the dipstick tube and check the oil again in a couple of months to see what's going on with the fuel dilution, etc.Typically the reason most mfr's say not to let an engine idle from cold to warm up, is because of increased emissions. By actually driving the car from a cold start, the engine comes up to temperature faster, thereby going into closed loop sooner and reducing emissions.
It's also not a good idea to start a car (especially in cold weather) from cold, move it and shut it right off, such as moving it out of and into a garage.
Do this repeatedly a few times, you wash the cylinders down with fuel, dilute the oil, and load up the plugs. As good as modern engine management systems have become, an internal combustion engine still requires cold start enrichment to start and run acceptably well.