I took a look at the article, it does link to the WMI class we use to scan some properties of VM's. However in the official documentation of the WMI class I do not find the data the article refers to.
https://msdn.microsoft.com/en-us/library/cc136822
The article you linked metiones ReplicationHealth and ReplicationState, both which do not seem to be in the official documentation.
Regardless, in the database dictionary you can find what we scan from the Msvm_ComputerSystem WMI class. Unfortunately, currently we do not scan the state of replicated Hyper-v vms. I will however add it to our customer wish link and link this topic to it.