https://docs.microsoft.com/en-us/azure/dms/how-to-migrate-ssis-packages-managed-instance
the above link show how to migrate the ssisdb to Azure sql MI, and suppose these package are in Azure sql MI already .
So in order to trigger the package in Azure sql MI , we can use Azure SQL MI agent , storeprocedure ....
Question is , do I still need SSIS Runtime from Azure data factory