Anything that DIL collects normally is in this extension. That extension is just putting the most current DIL on the page. 

You'd want to just use the AAM extension already built for Launch: https://experienceleague.adobe.com/docs/experience-platform/tags/extensions/adobe/audience-manager/overview.html?lang=en

This worked for me within the context of just pure JS on an AEM site. There was an existing function that fired upon the site action I was trying to measure and I just added this event within that JS function. Listening for just the body worked great! One note is that it wasn't working until I check...