Chinese Collectors of Chinoiserie? How Terrible?

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In the Kirsten Gillibrand Seminar on the CCPIA organized by the CPRI the "problem" of China was raised. As we know due to a MOU between the USA and China, the import of certain types of dugup antiquities from China is restricted to those that can be documented as having been legally exported from there. But what is this? Shock horror:

As a result, the market in such materials has just been shifted elsewhere. China is a ridiculous case. We have closed our markets to ancient Chinese art when the biggest market for such material is in China itself. State has failed to administer the statute fairly. >[...] A[rthur] H[oughton] also asks how effective the CPIA can be if 90% of the archaeological material sold is done so in a source country like China.

In a country "like" China? Somehow I think our transatlantic friends have lost sight of what the "C" in CCPIA stands for. To remind them it is called the Convention on the Means of Prohibiting and Preventing the Illicit Import, Export and Transfer of Cultural Property. So the fact that cultural property, dugup or otherwise (and 90% of it or not) is staying in China unless legally exported is what the Convention is aiming to achieve, isn't it? Why does that indicate that "State has failed to administer the statute fairly"? It certainly is fair to the Chinese people and Chinese collectors if it true that the antiquities are not now leaking out of the country in an uncontrolled and illegal manner to the world's largest no-questions-asked antiquities market in the USA and this is due to US dealers responsibly adhering to import restrictions which support that.

Vignette: Does the CPRI want to see Chinese artefacts kept away from Chinese collectors?