Why does the Donations app's administrator View button redirect to a default domain instead of a custom domain?

Soapbox Engage enables organizations to link one or more custom domains to their account. However, when managing a Donations app page in the administrator interface, clicking the "View" button opens a new window using the account's default domain.

Currently, Soapbox Engage does not include a feature to allow the user to select which of potentially multiple custom domains should be used to load a Donations app page from the View button in the administrator.