I think this was a crucial misstep of the early days, when the main focus was to build the best browser. This made the web entirely consumer focused from the start, which gave way for silos and advertisers to take over.
Imagine how different the modern web would've been if consuming content was as easy as publishing it, from the very beginning. There would've likely been tools built to give users control of the data they share publicly, and we could've ended up with a pull model, where companies _request_ access to user data, instead of there being massive central hubs everyone visits, that profit by tracking users, hoarding their data, and selling it on shady gray markets.
There have been some attempts over the years to do this. Most notably Opera with Unite in 2009, which failed miserably, and more recently the fediverse, which has yet to gain mainstream traction. I don't think that the technology is the problem in either case. It's just that the consumer web has so much momentum now, that there are no supporting services to allow the tech to propagate (e.g. most people still have asymmetrical internet connections, or NAT'd routers, which makes sharing difficult). And the UX needs to be on par with modern web browsers, which is a tall order, given the few decades of head start browsers have had.
I think we're just too late for that original vision to happen, but it's great reading that it was planned from the very beginning.