As-Salamu Alaikum, I believe Sheikh Yasir is speaking more about the "sect" rather than speaking against following the way of the salaf. You also have to understand this brother is under a huge amount of pressure in the US as the FBI has monitered him and his institute.
Definitely agree with the hostility. A very aggressive and narrow minded group of people. They think they are right and everyone is wrong because they follow the Salaf. All Ahle Sunnah follow the Salaf. They always do more talking then practice. They think using words like Akhi and having "Abu" in their name makes them a better Muslim. While they flirt with girls and do all sorts of wrong actions.
I was actually waiting on him to admit to the reality of this tradition and as intellectual he is it hard to believe he was a 'So-called Salafi"... he is finally in the boat of real scholars Alhamdullilah!