Delete the Sample Workspaces from Planning?

Has anyone figured out a way to remove or hide the Frescopa Sample Workspaces from all users in Planning? Support is saying there is no way to delete and to submit it as an idea but I wanted to see if anyone had any workarounds. 

I can see it causing major confusion to our new users as we role this out when they try to add a new connected column and are overloaded with Frescopa Marketing fields.