if you’re relying on the set of tools made by @kildor, it seems like the project species tool would be a more direct way to get the species list for a project.
i made a page a while back which may or may not be useful for viewing the results in a human-friendly format. it wouldn’t be much work to add functionality to that page to export the list of taxa, but i never really understood why people really would want to do that. so i’ve never bothered.