More seriously, I have no idea what book you're talking about. Whatever it is you're referring to, it was not the textbook used when I took Data Structures and Algorithms in undergrad (EE), nor when I TA'd the course while doing my master's (CS, Graphics) at another university.
It feels a little arbitrary. As an EE, I took many classes on the fundamental design and construction of computers and communication networks. That knowledge has been very useful in understanding how my software interacts with the world. I will be the first to admit that my knowledge of trees, graphs and other data structures are weaker than those who spent many courses on them. But the company needs a broad assortment of skills to succeed, so it seems like a bad idea to base hiring heavily on finding people that all have the same talents as the interviewer. Of course, if I need to conform to that mold to pass the interview, that's what I'll do.