"When data download is enabled, data can only be downloaded by users who are signed in to an ArcGIS account. For dashboards shared to the public that include elements with data download enabled, anonymous users do not see the download button on the element." -- https://doc.arcgis.com/en/dashboards/create-and-share/download-data.htm
Why? Am I missing something else? Any workarounds?
I was excited to discover the data download capability, but this caveat limits the benefit in my mind. A public-facing dashboard should allow any user to download. Open, accessible data is the goal. It is not intuitive to have to sign in or create an account.