Dynamics Navision 2013 NAS Setup

In a past life I have setup the NAS for classic client i.e. setting up the service on the server.

In 2013 the services are all wrapped up together i.e. Client, SOAP, OData and NAS Settings.

Whoever setup our Navision has a service for the NAS seperate to the main service which holds settings for Client, SOAP, OData.

Is this normal practice?