This is really sloppy. Altruism is also the basis for Altruistic Punishment which can promote some of the most vicious behavior that humans are capable of. Social systems are much more complex than this simplistic reductionism.
Humans are literally Jekyll and Hyde.
Bit of a misnomer that, surely, as reductionism is all about simplifying things into digestable components.
Also this is an interview piece, its not going to go in depth.