I'm surprised no one has responded to this (though granted it's probably due to the language barrier of the source Chinese video). This article is about a fairly comprehensive survey of over 36 cars on the Chinese market of level 2 driver assist technology (ADAS) on an actual highway. Interestingly Tesla did the best, even over cars like Mercedes C class and other cars with LIDAR as well as the local brands. One alarming trend the article notes is that there was a wide range of crash avoidance behavior even between the same car likely due to the machine learning, and that also makes explaining the differences hard. Hopefully someone with more background on ADAS systems can watch and post what they think.