Using the link is not simply less convenient. The user to whom I wish to send the attachment does not necessarily have permission to view the original list item. It seems I can neither send her the attachment directly with the approval nor automatically share the item with her.
For other users: If you don't need the comments function, you can re-create the Approval with a Send Email With Options action.
Is this ever happening? It seems like this should have been added in the infancy stages of flow....attaching what you are approving to the email requesting approval.... when is this going to be added? I've spent hours trying to implement workarounds in Flow and Approvals with no luck.
We are now working on the functionality to attach files to Approval requests.