>On the other hand it looks like it'll become much harder for JavaScript-less environments to extract data from web-pages as now an article on a news site could

>On the other hand it looks like it'll become much harder for JavaScript-less environments to extract data from web-pages as now an article on a news site could be something like <news-article id="23848923"> and the JavaScript side will do the rest. This is already the case on a lot of sites, just not standardized. With the standard you could sandbox the javascript or maybe implement specific parsing for the most common web components.