Why is the DataEngine Xnode service / modules folder housed on the install folder?

Why is the DataEngine Xnode service / modules folder housed on the install folder?

"Program Files\ManageEngine\ADAudit Plus\apps\dataengine-xnode" I get that this feature is to reduce search times but why can't a lot of these audit logs located in the below folder to go MSSQL?

Program Files\ManageEngine\ADAudit Plus\apps\dataengine-xnode\data\main\audit-log

This takes up almost 55 GB of space on our server, all of are events to go SQL, just wondering why this lives on the install folder? 

From my understanding the folder where it contains the audit data of few of the modules like file auditing logs, logon auditing, PowerShell auditing logs


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