If you want to have just a classic download upload it via the api with out providing the compatibility tag, set that via the UI if/when it ever changes. It should then be uploaded to the regular download. Some authors wanted it to add the addon as classic if a classic version number was submitted.

I can remove the classic downloads and clean things up.

Cool, thanks! I see you already did the cleaning up. Uploading without the compatibility tag now worked as intended! Cheers!