Currently Gainsight PX throws you to your default dashboard when you try to access a dashboard that you do not have permissions to.
I would expect that if following a deep link to a specific dashboard, that the user would be given a notice that they have attempted to access something that they do not have permissions to view. Yet the user is redirected without any notice to their default dashboard.
Would love to see the ability for the user to request access but at the minimum be informed that they do not have permission before redirecting the user.