Change WordPress user roles and capabilities › Forums › Restrict or Permit access inside WordPress – how to › Is there a way to let role “SEO editor” to work with page revisions? › Reply To: Is there a way to let role “SEO editor” to work with page revisions?
I don’t see any special permissions requirement for access to revisions except one that user should can edit original page/post.
Check if your version of ‘wpseo_editor’ role contains the same list of user capabilities under the “Pages” group as ‘wpseo_manager’ does. Just in case something was be revoked.