Nice find by78. Really wish there was a version with English subtitles, but beggars can't be choosers!
Thank you to ahho as well for listing a few of the takeaways. Anything else of interest in there?
On the interviewee's comment about MBT's being useful for urban warfare I would have to agree. While you can't just ignore infantry in any situation, US operations during GW2 showed that armor was essential to strong pointing and clearing hostile cities/villages. It also provided much greater protection for soldiers against IEDs.
Canada had a similar experience prior to that during operations in Afghanistan, where the lack of protection and fire support was an issue when exclusively using LAV/Stryker Brigades, and Canada had to urgently borrow and purchase Leo2's as a result.
I would assume the Chinese have observed these results and integrated the lesson into their own systems and tactics. Could explain the comment you noted.