Incase anyone comes across this in the future, the solution I came up with after a little reflection is:

[InitializableModule]
    [ModuleDependency(typeof(InitializableModule))]
    public class MirroringInitialization : IInitializableModule
    {
        private static readonly ILog logger = LogManager.GetLogger(typeof(MirroringInitialization));

        public void Preload(string[] parameters){}

        public void Uninitialize(EPiServer.Framework.Initialization.InitializationEngine context)
        {
            DataExporter.PageExporting -= DataExporter_PageExporting;
        }

        public void Initialize(EPiServer.Framework.Initialization.InitializationEngine context)
        {
            DataExporter.PageExporting += DataExporter_PageExporting;
        }

        void DataExporter_PageExporting(DataExporter dataExporting, EPiServer.Enterprise.Enterprise.PageExportingEventArgs e)
        {
            var pageReference = e.PageReference;
            if (pageReference == PageReference.EmptyReference || PageReference.IsNullOrEmpty(pageReference))
            {
                e.Cancel = true;
            }

            var pageProvider = DataFactory.Instance.GetPageProvider(pageReference);
            if (pageProvider.Name == "XMLPageProvider")
            {
                e.Cancel = true;
            }
        } 
    }

Hope it helps

Al