I understand the need for this type of photography, and I can appreciate it. But it's just "documentary" macro and I don't think that killing subjects for a photo should be the norm. There's also a lot to be said for an image that tells a story, and you can shoot at high magnification without focus stacking...
Excellent article, and a subject that I've blogged about in the past. I study portrait composition and apply it to my macro work all the time.
Another aspect of macro composition is determining just how much magnification should be used. Often times just clipping the wings of the subject is a bad thing, it leaves the viewer wanting to see the whole insect. So I either go for a "scenic" shot, or just a photo of its head.