The only benefits of HTML are that it's supported by all vendors. But that's where it's advantages end. HTML and CSS are just a joke, and were never meant and designed to be used for application development. Javascript is a shit language, not geared towards writing performant code and projects like V8 try to workaround it, but that's just a workaround. Of course you can use hacks to achieve performance in JS too, but…
Okay, so if HTML and CSS are so horrible then how do you propose we create websites? We're talking about the web, man! You've got to use HTML if you're going to work on the web no matter what. I see nothing bad about HTML or CSS. Every language has its shortcomings but that's because it can't be all things to all people. The really awesome and a,axing thing about HTML and CSS is that we as web developers are innovati…
The advantages of the web are not the technologies it's implemented with, but very founding things like URL, instant delivery of content and applications. All of that is completely unrelated to the current technology stack. Google is a good example for you. They are probably the most experienced people out there in creating complex web applications. And yet they are the ones who try to bring technologies to replace them - Native Client, Dart programming language.
And you not even contradicting me, by saying "What's your solution? Replacement languages for HTML, CSS, and JavaScript so that not only do we all have to start from scratch with new languages but then wait even longer for browser support?" Yes, web stack is the current state of affairs. And it will take some strong man with balls to get rid of it and build a better new world. And yes, there are better technologies than that - a good example is QML for example. And I am by far not the only one who isn't satisfied.