Not enough info. Are they paying credit-card interest on this $100,000? Or are they paying off the balance before credit charges accrue? If the latter, they’re just getting free use of the money for 30 days.
As I read the article, it said that they had 100,000 in liabilities. No actual outstanding debt. It may be they have cards that equal the amount of credit of available funds to them. It is hard to know which is which.
I know that when I apply for anything, they always ask for all of my available credit limits are.