Took some time to read from Jan to Jun of this topic.
Some (personal) summary:
1. The guy who's in PLA uniform who have an "unfitted" face during the airport ceremony - guys, think WILD, he maybe the one holding "football" for Hu. (Or maybe NATO have a different codename for it? like "Ping Pang Ball"?)
2. It has been formally reported that American PR company(s) has been bitting for that "ad" project. So, I guess the American PR still not working for most of us? Find a whole bunch of guys, line them up, show some subtitle like 1.5s, and next batch... and expact people to remember "they are representing the best that China can give to the world"???? I mean, I am a patriotic Chinese Citizen, I call that STUPID, on top of anything else. I read news relatively more frequent than my peers, and I can (only) call out some of the character's names, not all. So the point is to let American people to remember "faceless" prestigious people of China? (If you line up all the American Presidents in a 60 second show, unless they have scar on face or something, or as "distinctive" as Lincoln...they are "faceless" to me. )
3. Regarding the "anti-American Song" during the state dinner thing. SDF is a first class forum with first class mods, so you guys is likely "not familiar" why the hell people got interest / zealous about this kind of BS? - Please heed this: THERE ARE PAID NETIZENS, who "start topics" intentionally, to mess up their targeted audiences. And THERE ARE PAID NETIZENS, who "follow up" the topics, to "make it looks real" to the other netizens, regarding the otherwise BS topics.
Mess up China-USA civilian-emotional-opinion (let's face it, every opinion is "emotional") on each other, IS THIS TOPICS target.
4. Besides the "China's big boss don't have his own plane (when travel to another country)", you guys forget the fact that arguably, US president is THE ONLY ONE, who tooks the whole cav with him (his Halo, his car, his attache's fleet of cars, his double Air-Force-One... on top of Air-Force-One), when he travel to another county(did he brought along his own cooks?). So, yes, China's president do not have his own plane is abnormal (among P5 of the UN); but no, it is normal, to NOT TO took the whole cav with him, when he is travelling to another country.