I don't buy the 'evil corp screwing people' angle either. They are making farrr too much legit money to care about occasionally screwing people out of 20k and 50k.
We're not talking about an EC2 or EBS volume here, this is access to an API.
Why aren't we talking about an EC2 - is that not a cloud compute service? People have been complaining about cloud billing since long before LLMs.
Anything to say about the technical problem of constantly monitoring many services against a project or account-level limit?
I've worked on a number of systems and while it is sometimes impossible to stop at an exact limit, I am confident that it is feasible to stop with less slippage than occurred in this scenario. And at the companies I've worked at, within a margin of error that we're able to absorb any slippage ourselves, as these losses are made up elsewhere, and are worth the customer goodwill. If we can do it, I'm sure Google can.