Earlier quoted context omitted.
This is an example of why cloud hosting is so scary. Yes, Amazon, and I assume Azure and Google's cloud and others, "usually" refund the money. But I don't want to be forced into bankruptcy because my five visitor a week demo project suddenly becomes the target of a DDOS for no reason at all and the hosting company decides this isn't a "usually" so please send the wire transfer.
Aws, able to bill everything down to like milliseconds of usage... We can't implement a basic cost limiter policy. I think we all know why.
There's no need to imply that, it's not illegal to criticise AWS. They do not want anybody to be able to set a limit on spend as that would probably hurt the business model.