I have (2) '72 2002's and have always wondered why they have different bumper overriders.
The tii: VIN 27612XX (March, 1972 production) has plastic intake runners and the shorter, pointier ('73) style bumper overriders and early non-reinforced bumper brackets.
The regular 02: VIN 25801XX (January, 1972 production) has the taller ('72) style bumper overriders with the same non-reinforced bumper brackets.
Both cars are untouched, original, never been hit, never been painted. Sorry this does not answer or resolve your question ... if anything, it complicates it