> I think it's fair to say that "roll-your-own" would probably make less sense

It is not particularly difficult to implement the use cases that the article outlines on top of existing lower level SDKs. Yes, I'm aware that some of these platforms offer a lot more capabilities than just DAG flow of prompts, but article's use case can be implemented in less than a day, TBH (from experience doing it twice now (not my choice; other decision makers are hesitant to adopt existing libs and prefer lower level libs...))

I just think the article would be better if it actually answered "Why LangGraph and not these?"