FWIW, I had a very similar interview process with google. First time I interviewed I didn't make it through committee. They called me back a year later and said

FWIW, I had a very similar interview process with google. First time I interviewed I didn't make it through committee. They called me back a year later and said that it was because all of the positions had filled (which seems suspect to me). In general, no one that I interacted with is someone who I would have wanted to work with.