Currently the default offline packaging tools in ArcGIS Online will create empty standalone tables in the replica definition. Syncing data will not populate the standalone tables with records. If standalone tables are used for application settings or inventory transactions or activity history (as we do in a custom application), this is a real issue.
The Advanced Options in the web map settings already provide options for attachments and features. Please add options for standalone tables - to include updates for table records or not, and perhaps a date or other filter.
This is already supported in the REST API Setup Map Area, using the optional featureServices request parameter with a layerQueries parameter to get the table records in the package. But that requires creating your own offline packaging tools rather than using ArcGIS Online to do so.
