It’s also fast. I clicked the don’t allow button and it responded instantaneously. Many cookie banners are (probably purposely, at least when should don’t allow) slow as hell.
> That one's the pretty much the optimal implementation though.
It's strictly performative, they're setting session and tracking cookies without consent. Whatever you click on their "consent" (or if you click at all) is irrelevant and has no effect on the cookies being set. It's been that way for a long time and nobody cares (I've reported it before and never got a reply).
It's a classic "do as I say, not as I do". Rules are for us, not for them.
After navigating for a couple of pages in incognito (without clicking on any option on the banner) I see two cookies set: one which I suspect tracks if I accepted cookies or not, and one that tracks the fact that I closed the EU/European Commission survey. I'm not sure what you're seeing, or if you're thinking that these two are not OK to be set.
* it's a small bar on the bottom
* the site works without clicking on the consent buttons
* it has clear "opt-in" or "opt-out" options
* no annoying "customize my permissions" sub-menu with tons of enabled switches and dark patterns