Calling it an oversimplification isn't blame. It's just a fact. And you are the one that told someone they were wrong, and couldn't back it up with anything but the thing that over simplified from the beginning. That's just dumb gatekeeping.

Backing a question about definition up with the actual source of the definition isn’t “dumb gatekeeping”. You feel that there is a right way to do RAG and you’ve written a framework that does it that way. That’s great.

I’m not the one who’s saying that certain things are not RAG so I don’t really see how I’m gatekeeping. I was actually trying to be helpful.