Would this discussion become easier if based on a starting point like:
On 7 Sep 2015, at 16:48, Ivan Herman <ivan@w3.org> wrote:
> [[[
> A **Web Document** is a uniquely identifiable and curated set of interrelated Web resources. A Web Document should be constructed of resources whose formats enable (individually or in conjunction with other resources in the same Web Document) a graceful adaptation to the users' needs.
>
> A **Portable (Web) Document** is a Web Document that has enough information to ensure a graceful degradation when presented to the user even offline. A Portable Web Document should also include enough information for a graceful adaptation to the user's needs.
> ]]]
we distinguished between
**Web Document** and **good Web Document**
and also between
**Portable (Web) Document** and **good Portable (Web) Document**
Requirements like "graceful adaptation to the users' needs" are all fine, but some web documents might just not adapt gracefully and still would have to be called a web documents…
Just my 2 cents…
Olaf