I would still be much more worried about the Baltic states being invaded. Even so, there is a reason no major powers have been at war since the invention of nukes, and NATO would not in any way be a pushover without the US.
I do not disagree on allocating more funds to the military. I even argued that it objectively has been underfunded. That does not change that this man is an asstwat and others like him try to scare Norwegians for their own purposes. I think a scared populace is a dangerous thing, possibly allowing for dangerous ideas to be implemented in the name of security. Recently some hefty surveillance has been implemented in Norway, which I blame on people like him.