Imagine a world where we have better technology and someone looks 20 years back at an old codebase. Everybody would have a hard time to understand anything. Everything of the old web tech would look overly complex und laughable overengineered. Nobody would probably be able to understand how a piece of CSS influences a part of a web page or how all the abstractions work in the code base and why they are there in the first place.

Modern web is a mess. I wish it wasn't, but it is.