The Nord Stream sabotage is not? You know some of the explosions happened on NATO territory, right?
Attacking Norway-Poland line at this point would be a very obvious and very direct attack on NATO.
Some of the NS attacks were on NATO territory. Denmark could invoke Article 5 were it found to be Russia. If "NATO" were in the equation, the saboteurs would have stayed in Swedish and Finnish waters, and even then it's iffy.