I believe the point is the wheel lines and to vary where the wheels go by changing the pattern each time you mow so you don't, for example, always drive exactly down the fence and cause a rut or mulch buildup or missed area.
I dont think it was "don't hurt the grass while you cut it" or "mow it four times in one sitting".
How often are you people mowing your lawn that that's even a concern? It's like this is "surburbs: the problem: the comment section"
You can do things correctly, with thought and attention even if they seem unimportant, or you can be a feckless dipshit. This applies to most things in life.
We people vary frequency with weather. Lawn tractors are heavy and, due to moisture, ground isn't always hard. On large properties some of the ground stays moist longer due to drainage issues. So yes, after years of indifferent mowing, one can detect where wheels have been moving topsoil.
"Worked as a landscaper during my youth"