Although in fairness that only communicates that the fees for shorting luna etc are high compared to the certainty on precisely when they will collapse. The issue is timing not destination.

These stable coins are not long-term stable, the incentives around them are horrible. Every stablecoin custodian has huge incentives to spend the fiat until their coin is only partially backed, and then sooner or later there will be a run. They're all going to collapse.

Much like traditional banks in fact - there is no uncertainty that eventually they will go bankrupt. It is easy to predict what the mechanism will be. But maybe they'll last long enough to be useful.