I think it can depend on what's covered in the course. I know that the niceties of grammar, punctuation, and spelling are often neglected UNTIL you hit college, resulting in a great deal of shock. So, if the course helps with the technical aspects of writing, then I am all for it.
As far as creative writing, I might be a little more on the fence. I like to follow the advice of a good many published authors who say that writing is a muscle that needs exercise, and if you're serious about writing, write at least 2,000 words a day. They can be rough, and you might throw them out later, but write.
And if you think that's a lot to write a day, it works out to roughly 4 pages of 12-point Times Roman, single spaced. That's not too bad, is it?