I completely understand that, and agree, but for the 99% of websites that are somewhere in-between a "page" and an "app", this sort of punditry is not really helpful. Most websites are interactive in some way, and also benefit from search engine indexing and linkability. Blogs like these seem to think all apps are true apps (DO something on the web), and other think they are pages (CONSUME something on the web. The truth is that most web applications are a hybrid; you will DO something that persists so others can consume it.