This makes the flow of data easier to read and is slightly shorter in some cases. This pattern will be better for replacing more reference members with keys.
This moves the point of strictness from the handler to the driver, which makes more sense and keeps it in one place. Drivers choose to be strict when a script result is a failure but still gives a continuation handler. The CLI driver prints an error and continues, while the test driver fails if it wasn't expecting the failure.
Tim Van Baak