Thanks Rob for your close reading of this article apart. I think that’s a good point—the idea of educating or engaging the user over time (i.e. long-term, not just single session) is another interesting use case. To my mind that fits more closely under the Enrich spectrum, since it’s about providing incremental value over time, but agree there are elements of both.
That actually makes me think of something I hadn’t really explored, that depending on the project, it may be totally useful (and advised) to adapt the model language slightly to fit your particular user or client need—this framework is more of a starting point to help you consider the core elements from which to build.
As always I value your book club suggestions.