Tinderbox can process XML stored in any attribute, including $Text. XML element attributes are not related to Tinderbox attributes. XML stream operators are expecting the whole contents of the stream to be a valid XML object.
Returns the value of the object at path.
Iterates the child objects at the path using an action.
Attempts to parse the Stream's string and re-scope it it as only the (first) XML code detected within the text. It fails if unsuccessful.