This is Khai from the Product Team of Holistics, thank you for reaching out.
The link you have been referring to is the previous version of Holistics in which we did support Athena for reporting.
However, in the new version, Athena is not there yet; but worry no more, we have already added Athena to our roadmap and +1 priority for it. We will keep you in the loop for any updates.
In the meantime, if you have any other concerns, please send us an email to [email protected], we will be there for you.