I forgot to mention above, we do have a Document suggestions page for this device. Now linked
Without making any further comment on what error might be present in /e/ documentation …
the /e/ pages are derived from LineageOS pages. A useful cross reference in case of doubt is to looks at the Lineage OS page for the device and turn to the install page:
https://wiki.lineageos.org/devices/starlte/
https://wiki.lineageos.org/devices/star2lte/
Both devices are …no longer maintained… not in itself a problem, but might indicate a user be sure to get well updated information.