@snood,
Poll numbers have been wrong for decades. It's not a new phenomenon.
Part of what polling creates, is a false sense of security.
Further, When polls show a candidate far ahead, it does two things immediately. It sends the lower standings backers out to the voting booths in higher numbers and lets those in the ".winning" numbers side falsely believe they can skip voting because their candidate is so far ahead, they cannot lose.
For myself at least, I was not surprised that the numbers in polls had been wrong. It didn't make me happy, just didn't surprise.