Totally agree...
I worked in Urumqi a long time ago, and even then the Chinese gave them hell.
But since my time there it got a 1000 times worse with basic ethnic cleansing and Uyghur rights completely taken away.
The moral of the story being that there is no way the Chinese would let the delegation near any dissidents.
These people they meet are being told what to say, how to smile etc, under threats.
Plus if you were basically imprisoned in Thailand in harsh conditions, you wouldn't be holding the captors hands and lovingly smiling...just utter PR silliness on the part of the Thai Govt that has probably made them a laughing stock with many countries.