> Webpages dying is probably one of the biggest design flaws of the original web.

I'd say it's one of the biggest design flaws of the current web, what with more and more content hidden behind paywalls, increasingly restricted WAFs, and rendered client-side via convoluted JavaScript.

Archiving and mirroring of old-style websites, delivered as static HTML, is simple and straightforward. 20 years from now, most web content from ~1996 to ~2015 will still be accessible, but much of today's web content probably won't.