Download pbix file from report based on shared dataset

Best,

We work with one workspace containing all datasets (the golden dataset principle, where all reports and datasets are seperated), and give users build-permissions on the datasets they need. They don't have access to our "dataset workspace".

Until recently (I'd say until a month or so ago) our users could download the pbix-files from reports based on a shared dataset. Our best practice up until now was to have the most recent pbix-file in the service, and whenever a change is needed, users could download their, or a colleague's, pbix-file and make their edits in Power BI Desktop. However, now they can't do this anymore, and I noticed the "Limitations when downloading a .pbix from a report" has been altered recently, and now reads: 

• You can download a file in either Reading view or Editing view. You must be at least a Contributor to the workspace that the report is in. If the report is based on a dataset in another workspace, you need to be at least a Contributor to that workspace as well.

Was this change announced somewhere? I couldn't find any information on this, but am wondering why this was changed. It seems to make the golden dataset principle a lot less interesting all of a sudden.

What are your best practices for having multiple users work on the same report? How do your users save and control their pbix files? I feel like it shouldn't be end users' responsibility to have some sort of source control of their pbix-files - which is why we had the system using the service set up. 

Would love to hear how you deal with this.

Thanks,

Best,

Eva