my understanding from the article is that such a component is a bultin system function ( and just named to have a distingushing name). Also my understanding as to its function from the article is that it only monitors the exclusions specified in the article. So there are no article exclusions and also other, really important (but not disclosed) exclusions.
However I'd check if there are VirusScan exclusions enforced by ePO agent on the Exchange server and if that means overwriting all relevant exclusions (including the ones set by that Exclusion Monitor) with the exclusions specified in the VSE ePO policy. This also raises the question of exclusion specification syntax in ePO, whether it is properly specified or not. Or even the exclusion syntax that Exclusion Monitor adds.