Making Comics: In the Classroom?

Scott McCloud's book "Making Comics" is very informational. I've never been one to like comics or graphic novels, but I can see that they can be of valuable use in the classroom.
There is always this assumption that you have to be able to draw well in order to make an effective comic, but McCloud takes us away from that assumption by emphasizing the point that "In short: There are no rules" (P5).
I really like how this book is set up. Not only does McCloud set an example for his readers as to how comics should look and read, he does so in an entertaining way. He's the type of writer who grabs your attention and writes in a conversational way. I felt like as I read, I could envision him speaking to me. I think a good comic would do this.
It seems that McCloud puts a strong emphasis on building characters with emotions that are evident to the readers. Sound familiar? That works the same way with novels. In the comics, this can be clear to the readers through facial expressions, body language, and of course, the words. I think that it might be easier for students to visualize in this format. However, I think that when it is the other way around, when the student is creating the comic strip, I imagine that they will struggle at times to make such efforts. I expect to hear excuses like "I stink at drawing," or "I can't think of anything..." Therefore, I think it is important to have the prompts such as the ones McCloud offers to get students thinking as well as explaining that great art doesn't necessarily make a great comic. Storyline, plot, conflict, characte development, etc., are all part of the game--just like novels or short stories.
I found a blog that has many linked articles as to why comics are effective in the classroom. As I scrolled through the list, I couldn't find one argument against comics in the classroom. In fact, I can find little, if any, information about opposing views of comics in the classroom.