Yes, some things were better and easier then, but it wasn't all great.
In my opinion, most technological problems have been solved: Broadband is widely available, we have fairly good standards for HTML/CSS/JavaScript, reliance on plugins and stuff like ActiveX and Java is at an all time low. The question is now what we do with our newly-gained freedom – and as usual, this one is trickier than the technical stuff.
And "blazing fast" is definitely a relative term. I remember the feeling of liberation when we got rid of dial-up, but there were still plenty of seconds-long load times just to see the main content--only to find it scrunched between two fixed-width sidebars (arranged in a table). And it was quite possible that the page would do its utmost to slow your browser down with custom scrollbars and cursors.
Image maps for site navigation, font size=1, and precious little free hosting of user content without ads pasted at the top and bottom of the page, more prominent than ever.
Sad part is that this wasn't an issue back then.
http://1997.webhistory.org/www.lists/www-talk.1993q1/0182.ht...
If I'm being extra nitpicky, Flash and JS were both doing the rounds in '99, but that's beside the point, I understand you want a 'linked documents' web.
In a hypothetical situation where that happened, would we have a different tech stack for zero-install client-server apps? I suspect people would still want to have them. What might this tech stack look like? What currently available software might be a good fit?
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.