I think the problem is that javascript has stopped being one language of many and has become the language.

There are hundreds of thousands of developers now who only know javascript. They have no perception of the parts of javascript that are badly designed because they don't know any other language. They think that computers taking 500ms to render a webpage is just how slow computers are because that's how it is with javascript. They think desktop applications that use 400MB of memory on startup are normal.

People no longer weigh up the pros and cons of javascript and decide it is the best option for a certain project. Javascript is all they know, and it shapes their entire view of programming.