100% the right takeaway. Even if it's just a couple of sentences of encapsulating "what I'm going to talk about", that should always come before starting into a long backstory.

I read a lot of blogs that make that mistake of starting off a post by droning on for paragraphs about the background, history, or context they want to set for the blog — but I need to know why I'm here in the first place. The title got my attention, but it still doesn't totally tell me what I'll get out of this.

A 'history of a problem' section also has to try and be concise and use really engaging language (it's hard) otherwise those background intros can feel like a chore to read and people will leave.