I think you overestimate many organizations ability to implement this type of rate-limiting.

I was told that I could only lead a horse to water but I could not make it drink. Turns out that was not at all true. I had to find which horse was being the ass and re-educate it so the yearlings could get to the water.

That said I think most people here can at very least have discovery conversations with LLM's to explore their options. They can share their architecture, infrastructure design and have LLM's walk them through gathering more information. It may be bumpy at first but I suspect some of them will be able to give the bots a few flat tires. I have confidence that necessity will drive innovation and they most likely will not even have to spend a dime.