Question on "Space, bitches. Space"

Space geek in me wonders... why do we promote the Apollo 15 mission as THE all-UM crew, when Gemini 4 was also an all UM crew? Both McDivitt (BSE Aero '59) and White (MS aero '59)received actual degrees from UM, whereas on Apollo 15 Worden and Irwin recieved Masters from UM and Scott received and honorary degree from UM (even though he did attend UM for a couple years before transferring to West Point). Is there licensing / legal issues / bad blood about not using Gemini 4? I would think that having TWO all UM crewed space missions is an even greater accomplishment than one...