[Bobiam]

See the above.......
The VIN list in the class action lawsuit Eisen v. Porsche Cars North America, Inc. a few years back excludes some cars. My sources presume that the excluded cars are double row bearing cars as there is reduced likelihood of a catastrophic failure. It's not a perfect method of determining who is most at risk, but better than nothing. I'm living with it.

And, it is not uncommon to have little pieces of metal from internal parts get into the engine. The oil filter and perhaps a magnetic plug pick up most so they can't get into the pumped oil and recirculate. A bearing failure is a whole lot bigger problem than parts of a chewed up seal or retainer falling out of place.