Maybe that's your experience, but there are a number of people that didn't have that experience. I mean, you think Google isn't going to let you use a language

Maybe that's your experience, but there are a number of people that didn't have that experience. I mean, you think Google isn't going to let you use a language they invented in an interview? Maybe your interviewer was a jerk, or maybe this was for a very specific role in which only those languages are applicable, but almost all jobs at Google are generalists.