Yes. Even more generally... might be an over-application of Occam's razor: insisting everything be maximally simple?

That is another aspect, I think, but I I'd probably consider the underlying drive to be not the desire for simplicity but the desire for the world to make sense. To support this let me point out another universal human tendency -- the yearning for stories, narratives that impose some structure on the surrounding reality (and these maps do not seek to match the territory as well as they can) and so provide the illusion of understanding and control.

In other words, humans are driven to always have some understandable map of the world around them, any map, even if not very good and even if it's pretty bad. The lack of some map, the lack of understanding (even if false) of what's happening is well-known to lead to severe stress and general unhappiness.