The Insincerity of Sami Smith

This clip is taken from the conclusion of the interview of Sami Smith by Tony Dodge. It compares her insincerity to that of a political spokesperson. Notice the similar mode of speaking.

Insincerity isn't a crime by any means. And it's easy to see why a spokesperson would rattle off generic platitudes. But why does Sami come across like this? Was she at the party to begin with? Does she know what happened? Does she care at all about what happened to her supposed friend?