Grand Conde
Superstar
No, it isn't. Google Trends is a good indicator of a person's popularity. It obviously isn't perfect, but it's one of the best tools available to gauge a person's popularity.
Its a good indicator of recent interest in a certain demographic. Not everyone uses google breh. Do you think he is as well known as Brian O'Driscoll, Paul O'Connell Roy Keane, Robbie Keane, Henry Shefflin? Even Andy Lee?