All I'm sayin' is that it's the reference point for this particular dish. Much like if you're looking for a good Philly cheesesteak in L.A., you should get out to Philadelphia to sample from the source.
In 2010, I went to the Temple City branch of Kang Kang Food Court and was very disappointed in their sheng jian bao--they were charred black at the bottom. I have not returned since. Have you checked it out, or are you referring to another branch?