Web developers have been trying to move away from URLs that describe their content for 20 years?
My comment wasn't about URLs describing their content, but rather the assumption that goes along with it that every network request will always work perfectly. Once you realise that things do actually fail occasionally you should realise that local caches and bundling things in to a smaller number of requests can improve resilience.
That's not really an issue with Deno because it does things to mitigate the issue (eg caching packages locally), but websites that loaded libraries using separate requests for each one were horribly prone to failure if one thing was missing, and slower overall if the browser couldn't fetch everything in parallel, so devs invented things like bundlers to fix the problem. Then came things like code-splitting and tree-shaking to reduce the size.
Web developers have been trying to move away from that paradigm in order to make sites faster, more reliable, and smaller for almost as long.