Yeah, like mentioned - lots of styles and preferences and everything has exceptions. The one problem with large mapped areas like that example is that you couldn't add something like `residential=single_family` or `access=private` since that would then be a mistake (roads aren't private and not all of that land is single-familly housing). In other words, you would need to split the areas further to refine tags. (Of course, that implies someone has the time to do such micromapping.)