It actually renders most of the information you'd expect with JavaScript and Cookies disabled. Cannot say the same for Facebook, Twitter, Instagram etc. Just can't play the vid, but I can see the thumbnail.
https://mbasic.facebook.com/ works without JavaScript. Unfortunately it's becoming increasingly broken as it seemingly bit rots away from the main site.
While I don’t have first-party JS and Cookies disabled, I have everything third party disabled and had the same experience. Now that you mention it, that is actually extraordinary.