A web limited to textual content is a pretty quaint and uninspiring vision, IMO.
The web started that way because static documents are relatively easy to represent, but the future (and present, for that matter) is rich experiences that can be distributed in the same way.
But there are many steps left to get there, so either buckle up and help build that future, or get used to an ever-shrinking ecosystem of the purely textual Web.
I'm personally very excited by the convergence of mobile and web development, PWAs, improved functionality for layouts, self-hosted app architectures (like Tent and Sandstorm, language-agnostic runtime via Web Assembly, better serving performance via HTTP/2, low level multimedia APIs, encapsulation of rich UX via Web Components, and so on and so on.
Sure, it's bewildering right now, but in the future, this will all be knit together in a cohesive way.