I strongly agree with the title of the article. RAG is very interesting right now just as an example of how technology moves from being just fresh out of academia to being engineered and commoditized into regular out of the shelf tools. On the other hand I don't think it's that important to understand how embeddings are calculated, for the beginner it's more important to showcase why they work and why they enable simple reasoning like "queen = woman + (king - men)" and the possible use cases.