There's no reason a compelling walkthrough can't throw in historical citations, is there?
Exactly. The best science exposition combines both. See, The Mechanical Universe and Veritasium.
What specific historical citations would you like to see in this post?
Perhaps you could contact the author with your suggestions?
Often the most straightforward way to walk through an idea while teaching it is not the same order that the ideas were developed, and might not even use the same set of ideas in building up to it, so it can be tricky to get both the best explanation of the idea and the historical context in at the same time without making things more confusing.