See my other reply in this subthread - the money and the moat they have prevents a financial collapse for many years to come, even if they do not improve. So, I doubt RTO is a good indicator for (financial) collapse.
> the money and the moat they have prevents a financial collapse for many years to come, even if they do not improve.
Unfortunately, you do have a point there. We let companies grow way, way too large - not only does any potential competition just about zero chance to rise against effectively infinite cash coffers, but it also removes any incentive to improve when the moat is so large that one doesn't have to care about anything...