The name of the island I live on (Amami) is misspelled. That does not give me a great deal of confidence about the rest of the map.
I see Amami, what is the error?
On the detailed map showing Taiwan etc, the text on my image is clearly "Amani". I think that's true on the "big map" also.
On the Greenwich-centered maps, it shows Amami in both the English[1] en the French[2] version at least.
[1]: https://www.equal-earth.com/Equal-Earth-Map-0.jpg [2]: https://www.equal-earth.com/Equal-Earth-Map-0-FR.jpg
Where did you find the detailed maps?