Comment by lugg

After learning more about how to write well for your audience I've become more forgiving for this kind of thing. Writing well involves a lot of tradeoffs.

The article is more of a story and explaining axial precession distracts from that story. It is better suited explained later in amongst the rest of the diagrams and illustrations.

The problem then is how do you tell your story and include axial precession?

For readers like me who already know the term and sort of grok the concept we don't need early explaining. What I did need is the later graphic / explaining once the author started to link the concept in with other concepts not discussed until later.

So either follow the rigid explain first rule or have it clustered where it is relevant and useful.

Im not particularly going to judge either way there.