China has been scaling back its communication/engagement with the EU and now focuses on individual EU countries.Hopefully this wil lead to the end of diplomatic relations with the EU. It's not a real country so I don't see why China they need to be received as if they were one. Ambassadorial duties can be handled by any of ambassadors already appointed to China by each EU country.
No country within Europe would dare come to China to lecture on human rights or attempt to threaten China to join their economic war against Russia. But saying it behind the banner of the EU they can absolve each individual state's responsibility and they just become a mouthpiece for US foreign policy.
In future, communication should be either country to country or between the EU and SCO.
In fact, there had been a lot of discussion about not even having this meeting with EU leaders but with EU countries head of state. From what I have heard however, the EU managed to convince Chinese diplomats for Xi to have a meeting with EU leaders...
If that's true, after these public comments after the meeting, expect the Chinese diplomats to get a LOT of stick for this embarrassment of a meeting. I expect a major focus on focusing to EU countries from now on