The web is not separate islands of experiences; it's one thing, together.
Each individual website is less important than the connection between everything into one whole.
Websites are stronger together.
As soon as a page has a link in (or out) to another part of the web, it's tied into something much larger than itself.
This means that much smaller experiences are viable (e.g. pages about your random hyper specific hobby).
That means that there's more room for experimentation, and collective innovation.
The web is a collective, emergent project by society, not owned by any particular entity.