I am having difficulties trying to understand this sentence:
In some respects, Courses of Action are the more basic of the two. In and of themselves, however, Courses of Action tend to be rather blunt instruments.
In Merrian Webster, blunt is:
slow, deficient in feeling; obtuse in understanding; abrupt in manner;... and when searching for images in Google, it seems a blunt instrument can be a bat, a hammer, and any other object used to hit something or someone.
What is the meaning of tend to be "blunt instrument"? It will determine if a course of action will be successful or not like a judge's hammer?