Exactly right. There is also an obvious reason why they have to be serviced every 30k. They are making more metal as compared to conventional clutch and DCT automatics.
30k miles wouldn't have been often enough according to my UOAs but then you hear of others who don't bother to change to CVT fluid ever.
I think shear stability is more important than metals being lost. Magnets and filters will catch the metals.
https://bobistheoilguy.com/forums/t...i-oci-72-7k-mi-honda-hr-v.336252/post-5634384