I agree.

A great many pundits don't get, that RAG means: "a technique that enables large language models (LLMs) to retrieve and incorporate new information"

So, RAG is a pattern that is as a principle applied to almost every process. Context windows? Ok, I won't get into all the nitty gritty details here (embedded, small storage device, security, RAM defects, cost and storage of contexts for different contexts etc.), just a hint, that the act of filling a context is what? Applied RAG.

RAG is not a architecture, it is a principle. A structured approach. There is a reason, why nowadays many refer to RAG as search engine.

All we know about knowledge, there is only one entity with a infinite context window. We still call it God not cloud.