Some of CCs comments here just don't ring true for me. I don't think that Rosenman was attempting to make a parody score. I never felt the main theme was supposed to poke fun at typical Star Trek movie music. It was just Rosenman's attempt at a heroic theme (and why it is similar to his work on Bakshi's "Lord of the Rings"). CC seems to have issues with "overly cheery" music and it certainly affects his grading. But I feel that both Nimoy and Roseman felt that a lighter tone to the score was needed for the lighter tone of the film.
In addition CC says that there is little connection to the Star Trek universe and this music. Again I disagree. This music is closer in feel and sound to the original series scoring styles. Again I think this goes back to Nimoy's desire to make this more like an old fashioned Trek episode. In the liner notes to Intrada's excellent release, there's a quote from him about using Courage's main theme in the opening titles to get the fans ready for a clasic Star Trek adventure. But here Rosenman dropped the ball, turning Courages theme into something too slow and melodic to indicate a fun adventure.
In the end I agree with CC, this score does suffer in comparison to its surrounding scores. Horner, Goldsmith and Eidelman did some great stuff that is truely timeless film music. Rosenman's score is dated (but again that isn't something I would lower the grade for. The score was a good fit and a relic of its time). No, it isn't an epic adventure score. Its a fun score for a fun movie. But I will admit that nostalgia colors my opinion of the film and score.
An easy three stars in my book, and not something that deserves all the slams it ends up getting.