When people find themselves in a conflict situation they start focusing on what they perceive the solution or problem is. People simply things to such an extent that if you cant see or understand the problem in the simple form or manner they explain it, you must be an imbecil. The theory behind it is the following.
the theory that every complex phenomenon, especially in biology or psychology, can be explained by analyzing the simplest, most basic physical mechanisms that are in operation during the phenomenon.
the practice of simplifying a complex idea, issue, condition, or the like, especially to the point of minimizing, obscuring, or distorting it.
If we look at the second definition it becomes clear that in order for us to deal with complex situations we find ways of making it simple and easy for us to grasp. If we link this to the Meta model from NLP that deals with how we structure information, it is easy to see that the more simple we make things the easier it is to find things to disagree about.
One of the best skills and tools that there is to create agreement is to make things more general. Detail and simplification creates conflict. If we want to reach agreement on anything we need to start discussing things in general and then when agreement has been reached about the generalities we drill a bit deeper and deeper all the while taking the other party with us in understanding the detail we are moving into. In most traditional cultures there was an elaborate set of rapport creating communication structures in place before important issues may be discussed. In our haste in moving faster further quicker we lose sight that people inherently trust people they know. By making it possible for someone to get to know you, you create the opportunity for them to trust you and as such minimize the opportunity of disagreement and conflict.
In communications simpler is not always better.