SQL Manged Instance needs to support the same Metric Alerts that SQL Database has.
This is essential to being able to monitor SQL Managed Instance as part of the cohesive alerting setup as our other Azure resources.
Metrics alerting is now supported from Azure Portal.
This is important. As we are moving our production to the cloud, we require an alert system. relying on DMV is ok, but not Cloud-like... the sooner this is in place, the better