Well, the connectivity between the two agents might be broken but the agents could be still up. And the opposite could also be true. If an agent has trouble connecting to our cloud, it will be reported down but the sessions could still be up… That being said, the network issues in the App and the email notifications are only related to the sessions being up/down/degraded.
As you can see, since the solution is fully distributed, it is easy to monitor route blackholing or routing issues between sites/agents.