This would be amazingly powerful. I believe there is a way to already do this. Shipstation just needs to access QVM and send out tracking data as a logged-in user. In other words, a separate QVM ID and credentials are created for them to ping from when accessing the API When creating the label it will send tracking information out to Shopify.
This is the only thing we are truly missing since changing over to shipstation. It was so easy to update something wrong with the package and still get it delivered on time to the member.