Actually, the way you read it almost exactly contradicts most of the reported reasons that the engineers who left did so. It seems far more likely and believable that you'r exactly wrong -- and that the engineers who are leaving google are leaving BECAUSE they like working on algorithms and solving scaling problems, and aren't able to get opportunities to do that at google.
I was relating my experience and trying to qualify it carefully, but you are choosing to read what you like and ignore the rest. Which is fine for an internet argument, I guess.