God forbid. I happen to like adblockers, inspecting app DOM, and applying custom styles and features with browser extensions. I can customize even poorly-built web apps like Youtube and Facebook with enough poking around and custom selectors. It's great.
Don't bring native UX sensibilities to the web, or we'll retaliate by pushing Electron even harder for cross-platform native development. And yes, that is a threat. ;)
Every time this conversation comes up, I make the same point: the DOM is not a layout tool, the DOM is a user interface. The DOM forces you to give your users a pure-text representation of your current state -- it forces you to think of your current state as an XML-like data object before it allows you to think in visual terms. That's the point: your user interface is XML, not pixels.
Imagine if every native GTK app forced you to come up with a universal text interface that worked in terminals before it would let you add any of the weird keyboard handlers and unresponsive layouts and HDPI-unfriendly menus on top of it. That is how the web do.