Author credit is the last column in the list, so the information is available, but it's not currently displayed in the table on species pages. This info is contributed by multiple people from multiple museums so it makes sense to directly credit the author.
On some species pages, a Museums Field Guide table appears with additional information, eg: https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/e6aff6af-ff36-4ad5-95f2-2dfdcca8caff
This data comes from this list and is displayed for any species on this list: https://lists.ala.org.au/speciesListItem/list/dr1146
Author credit is the last column in the list, so the information is available, but it's not currently displayed in the table on species pages. This info is contributed by multiple people from multiple museums so it makes sense to directly credit the author.
Reported by @timhicks-ala