Published status of the page does appear on many consoles and adding in this report isn't that big deal. However, it is something never came up and probably never asked for. All I can say, Raise a day care ticket to get this fix.
We suggest AEM to clients, saying that it has so much of OOB functionality, and so we could avoid customization efforts!
On a lighter note: This is the sales team line. We as a developer should not suggest so.
There isn't a way to add another column in existing Grid columns & populate data accordingly. Though, There is a configuration (com.day.cq.reporting.impl.ConfigServiceImpl) for this functionality, But it is only for those fields which are already there.
So, All I can say, you might have to extend it or create your own reporting UI.