I seriously doubt you’re writing the same kind of webapps you were a decade ago, if so you’re a minority. Regardless a decade doesn’t “refute” that the web itself is a total disruption of the way people wrote code prior. This industry is always changing paradigms and were constantly exposing more high level ways to instruct the processor.
In any case, I need to refute your argument, in my work as software engineer spanning more than a decade, I have noticed zero deprecation of my skills (Java, SQL, HTML/JS/CSS) (while keeping them up to date!) until now and only had to learn a few new complementing skills (cloud, docker, SPA, Kubernetes). The only skill that got replaced might have been "Java application server management" since that got replaced by whatever docker runtime is en vogue at the moment. I have worked for the government and met PL1/Cobol mainframe programmers that refused to learn Java and still got paid generously for their long term expertise.