Right posters I have decided to close this thread.
So what has been clarified by a number of Mandarin speakers is that the professor did use a negative expression to describe a group of countries, similar to someone in English saying Uzbekistan, Kyrgyzstan, Tajikistan and Pakistan xinjiang is better than all these bloody stan countries.
The bottom line is that the professor had no reason to lump Pakistan with the countries above, as none of them share the close strategic partnership Pakistan does with China. His common sense left him when he used Pakistan to make a point, not being aware how his words would reach wider audiences, and could be used to drive a wedge between people. He could have easily said xinjiang is better than surrounding states, xinjiang has developed far more than neighbouring states etc, this wasn't beyond him, after all he's a senior lecturer in materials and engineering, so choosing his words wisely was not a tall order at all.
However the video is old, and I can only hope this individual is not seen again in such a public setting talking about geopolitics, as he doesn't have a clue, and may harbour ill intent towards Pakistan. I'm sure the authorities in China will also read this thread.
I'd like to thank the Chinese posters for handling this in a mature way, the respect they have for me, and explaining the video which didn't talk about genocide or anything like that. It's also important that we were able to discuss this in the open, rather it appearing on another media platform, which is hostile to both countries and them having a field day with the video i.e. making suggestions that the ties between the two countries are frail.
I did think long and hard about putting this thread up, as the Pakistan/China relationship is so important, and on a personal level I do love Chinese culture, people, history etc. But referring back to my original post, the point of this thread was to clarify not demean, finger point, bash and so on.
Thank you and have a good day.