Revivng this long-dead thread to look on it with hindsight -
Two things... one, I bet the reason that the 2005 Cadets asked Bocook to write two original pieces and base them on Whitacre's Equus*** and Barber's Medea is because they likely paid out the *** for the rights to use two Bernard Herrman compositions as well as two of Bjork's songs, both of which come from a film. Depending on who owns the rights to those songs, they may have had to shell out a lot of money for those.
Two, with the benefit of hindsight this use of Medea is SUPER interesting because intentional or not, this is one of only FOUR instances of Medea being used in finals (up to 2023), and that makes it referential regardless. Outside of finals, it's only been directly used three more times (not counting DCA or international corps). Between 1993 and 2005, no Div 1 or Div 2 corps played Medea (Crown's "inspired by" original composition in 2002 really sounds... nothing like the Barber). And suddenly GH and the Cadets decide to use it in a show designed to win, that would end up tying for the highest score of all time to that point? From my high tower in 2023, that SCREAMS "hey Star alum, look what we can do."
This is to say NOTHING of how intentionally or unintentionally referential the Cadets 2013 version is, with the way it's arranged into the brass being extremely similar and also hitting similar beats teleologically (like how it starts with the small ensemble brass, for instance, and how the build to the final hit of the show has some material that could have been pulled directly from Jim Prime's book in 1993). And don't even get me started on Crown 2016's version (a ######-off show from Star's spiritual successor? Come on now!)
I'm doing some research about this and just thought I'd weigh in. Super, super interesting stuff with hindsight.
***We also got the monumental Liquid from this. Go Jay Bocook!