"We should think of the web as anything transmitted using HTTP and HTTPS."
Which unfortunately, because there's hardly a single modern internet application or service that doesn't or can't run over HTTP(S), it inflates the definition of "web" to be so broadly inclusive that it becomes an altogether meaningless term.It may be his intention to position native "apps" as something not in opposition to, but rather a part of, the web. But that does a disservice to the original meaning of the web, which thrived in large part because it wasn't just another native app connected to the net.
Instead, I'd recommend pushing back a bit, and trying to retain the other critical elements of what made the web the web, such as transparently introspectable formats, RESTful documentment-oriented architectures, hyperlinkable URLs, crawlability, freely-licensed and open protocols, etc.