I’m not quite sure Uber ever intended for their drivers to be able to own $900,000 homes (that’s about what a $4k mortgage would get you with 20% down). To me that smacks of a very rigged game with some sort of agenda behind it.
Total bills would have been much more appropriate, unless Uber drivers themselves are reporting $4k/mo mortgages, in which case loan approvals need some serious regulation.
Regardless, this game is about someone on the edge of financial failure. The only option is selling the house and hoping for some profit to pay for relocation.
There's probably other recent evidence to support this idea...