That would be a welcoming change! With html5 standard, pages can have text, image, video, even css animation, all without JS. If the page need to load some SPA

That would be a welcoming change! With html5 standard, pages can have text, image, video, even css animation, all without JS. If the page need to load some SPA app, draw the canvas (accessing GPU), or WebUSB, etc, then ask for permission would be a good idea. Just like how accessing ones' camera and mic requires permission. It will force web developers to do less stuff in JS for just display. And if an app type of application is needed, then ask for permission.