I have cookies set session only so they're automatically deleted when I close the browser but as a test I set cookies to 'never' and deleted all those cookies then returned to the bbc website. No complaint from them that I've disabled cookies. No popup. Same header saying I agree. I checked cookies and as expected, no new cookies from them. Just seems odd that different website work different ways. Not sure any of them know what they're doing.
It seems to me the ideal would be like the bbc but the opposite way round, it saying by default: Cookies: NO then a link to read clear info (no deceit) about any advantages, with an option to set them ON. That would seem sensible, non-intrusive, and fair to me but I doubt if any website will do what is sensible, non-intrusive, and fair. Not seen any yet.