Realistically, the things I've seen focus on the trade-in value of said car -- ceteris paribus a car with 80k miles is simply not worth as much as one with 200k miles. Plus the increased maintenance associated with all the extra miles. I'm also pretty sure the used car market is penalizing people for their ride share activities.

So they may be "unlocking wealth" today but in the long run who really knows how much of that "wealth" they're really benefiting from if any at all.