Maybe it should just be relocated to another section, possibly as a subject within editing? It is a broad topic though, from production to post, audio certainly covers quite a bit of ground, and it deserves a great deal of attention.
The other thing is, almost every film student aspires to be a distinguished player in the film industry, like producer, director, writer, cinematographer, etc. You don't hear of too many film students eager to push the cameras, glitz, glamour, and oversized budgets aside to get their hands on a boom mic and mixer. But, you might hear about a few beginning filmmakers who’d like to do audio creation and/or enhancement in post. Often a lot of people make up for the poor audio quality they get in production by sweetening and/or replacing it in post.
Virtual sound studios and the usage of loop based programs to create your own soundtracks for a film is very popular. I think it's an invaluable tool for any filmmaker who has no musician friends capable of composing an original score.
Some relatively simple, yet effective programs that I can name right off the top of my head are Apple's Soundtrack, and Adobe's Audition. There are tons of other programs out there, like Sony's Acid and Sound Forge programs, which work wonders for filmmakers and musicians alike.