I have WebGL disabled in my main browser for privacy reasons (super-easy to fingerprint), and I only get to see 'Application error: a client-side exception has occurred (see the browser console for more information).' with an error about ThreeJS initialization in the console.
I assume it's for the fancy animation, and I find that ridiculous. Loading a whole 3D library just to show a fancy animation. This could have been done much simpler by using an animated image format, though admittedly with less functionality - but is it even needed?
I fear the whole industry suffers from overengineering and this is just a symptom.
Even if you're convinced you need the fancy animation, why not gracefully fallback to not showing it and still make the docs usable?