It doesn't really matter if it hits Europe or not from a direct Human perspective. Most transportation throughout the world is now so easy that a form which can be transmitted from person to person would be a massive danger wherever it started. However, it should still be contained because the fewer places it exists in - ie the fewer number of birds infected - the lower the chances of it mutating.

But still, this sounds like a scare tactic to me. I don't think it terribly likely to mutate in the exact manner required, but hey, maybe it will. I'm not terribly worried though. I'll worry about it when it actually starts happening.