Hi Phil,
This is the default behavior of STV 2.0, where we try to flatten out the detail view hierarchy as much as possible, which results in the user making their selection with the fewest possible taps.
In the final release (due in less than a week from today), you'll be able revert back to the old behavior by adding the following line of code:
...
datePropertyDef.attributes =
[SCDateAttributes attributesWithDateFormatter:nil displayDatePickerInDetailView:YES];
...
Please tell me if you need anything else.