I am not convinced by that theory, many makes of vehicles use shell bearings with no tabs (td5 being a well known engine) and you do not hear of them rotating?
In my mind they have to have a reason to rotate in the first place, ie they have picked up for some reason (no oil/lack of oil/lack of oil changes/engine overheat etc)
D4 more of an issue as no dipstick, so people forget/do not bother.
The oil change intervals are way to long, the oil pressure is very low, the oil quantity is not enough for such a large engine.
Do not forget people always take the psis with service intervals, ie I cannot afford it this month so will do it next month maybe possibly, and voila we have a recipe for disaster.
Same failure has occurred in the peugeot and renault car versions with the same engine, always seems to be the same story either accelerating up to speed ie slip road etc, or minding their own business at 70 mph and pop goes the weasel.