I want to use JJG's visual vocabulary to construct the diagram of a web page. However, I cannot fully understand some of its components. For example, the conditional selector is used when a user action generates one of a number of results for a given path. According to this logic, I cannot see why he does not use it in the following example:
Also I cannot understand why the results page is not represented as a pagestack since it is defined as a "group of functionally identical pages whose navigational properties are immaterial to the macrostructure of the site"