To the contrary, I think everyone should touch the DOM when they need the DOM. If this is going to be a platform for more than ads and shitty games, it will need to be able to use the browser's exquisitely engineered ability to do text rendering and layout.
Just like Flash or the JS game platforms that are stupid hacks on top of the canvas element, if people have to implement text rendering without the DOM, it'll encourage putting poorly-rendered text in unusable layouts with squirrely scrollbars. We can do better.
