Provide a link to the read-only version of private datasets

The current setup make it difficult for reviewers to anonymously access private datasets. Either the author of the data paper needs to share their login info (which is a bad practice and essentially impossible with the required gmail authentication) or add the email address of the reviewer to the dataset, which removes anonymity.

To get around this issue, is it possible to provide a shareable link to private datasets for this purpose (e.g., like on NeuroVault)?