Great question! They are actually two sparate things that happened in 1994. The thing that ties the web together is the URL/URI spec. Look how it changed from June 1994 to December 1994. One important word, the "U". It changed from universal to uniform. Tim wanted a web that was universal that encompassed http and all other protocols. The IETF wanted a web that scaled to billions of people The IETF won, and they were correct. The web became capable of carrying the commerce of the world, without the need for scaling conferences. PS that's the thing nostr would benefit from now.
At the same time it was Marc Andreessen who made Mosaic, the grand father of Netscape, Internet Explorer and Firefox (in fact Mozilla = mosaic killer, but they didnt do it). He was the one that added multi media to the web. But he also took out the editor functionality. Tim pleaded with him to keep the browser as an editor, but he said it was too hard. Tim mused that it couldnt have been that hard, because his original browser was also an editor. So the browser became an instrument for reading, and writing or editing when to the server.
These two forces together, marked a shift from a user centric vision of a read write web, to a server centric vision of a scalable web where the writing happens server side.
What is needed is a scalable web, where users control their identity, where users have the ability to both read and write, and the server plays less of a role. If nostr can scale to millions or billions of people, and also allow people to own their own identity, that will complete the vision of both sides, but there is still some work to do, to get there.