An important thing to realize is that no matter how much they try, a company the size and profile of Google has at best only a loose control over their hiring process.
There are too many internal recruiters of varying ability and agendas, and too many interviewers of varying ability and agendas.
A company like Google can have stated hiring principles and techniques, but in practice it's going to be nearly random.
Humm no. Google interviews are (or at least were) pretty much right or wrong answers mostly.
The best interviewers could do what you say, but for the most part, no.