New templates are featured in the Atlassian product post for Cloud.
It came to our server customer's attention, and they're looking for these templates. It's not clear the new templates are only for Confluence Cloud.
Make these new templates available to our server/datacenter customers. I believe it would be a great addition and help a lot of our server customers!
Currently there is no known workaround for this behavior. A workaround will be added here when available.