Funny enough Chinese State owned banks have been doing much the same for quite some time. No one ever defaults, loans are extended as long as it takes. Presumably the threat of being called into the next party meeting to explain yourself is sufficient motivation for the people running the business to pivot as many times as it takes until they find a way to make money. Worst case the state swaps someone else into leadership.
I say this to say... who knows? I guess if you shuffle deck chairs fast enough everything works out fine (?)
The larger you are, the larger the rounding errors are, the more money that can disappear due to a failure and explained away or extended or written off or whatever euphemism you want to pick. But the sum of rounding errors is less likely to itself be a rounding error. It works until it doesn't, and Evergrande collapsing with $300 billion in Chinese real estate debt will be a case study for years to come.