Definitely. In another section which I eventually scrapped (I'm the author) I argued that for most situations I think there are more straightforward ways to seg

Definitely. In another section which I eventually scrapped (I'm the author) I argued that for most situations I think there are more straightforward ways to segment content for different audiences. However, there are some edge cases where one page must serve multiple audiences. Such as a "get started" experience that you have invested a lot of time and money into and which is unfeasible to duplicate. Or news articles. But then again, the inverted pyramid seems like a pretty good solution for news articles...