Exchange Monitoring

We have recently had a situation where our Exchange Server went down and upon restoring it, around 5% of mailboxes were offline.

We eventually found the issue was because they were quarantined but the AppInsight for Exchange told me that those individual mailboxes were healthy!

Shouldn't the AppInsight be able to determine those mailboxes are quarantined and alert accordingly?

The issue was eventually identified after running the Microsoft Exchange Best Practices Analyzer which found the quarantined mailboxes. The EventID 10018 in the Application Event Log was then obvious but in amongst all the other alerts, they were missed.

So I have a few questions...

1. Can those EventID's be added to the AppInsight for Exchange to help identify those mailboxes as problematic?
2. Do I need to setup a different monitor to alert for those EventID's to show in SAM separately?
3. Are the other Exchange 2010 templates a good idea to have enabled on our Exchange Server anyway and will/can this EventID be included in one of them? We have a single Exchange Server that hosts all the roles BTW.

Thanks in advance.