Given that it's Veteran day, and the term "foobar" is thought to be borrowed from military term "FUBAR," I am guessing that it is Google's attempt to recruit Tech-savvy Veterans.
In the article you linked to, there is even a short discussion of the possible connection between "foo bar" and FUBAR. If your comment was meant as a rebuttal, it failed.
http://en.wikipedia.org/wiki/Foobar#Usage_in_code