Nord Stream is 51% Russian (Gazprom). Not sure if it is NATO territory or international waters. It still becomes a little bit more "muddy" on who could have made it and who benefits from it.
Attacking Norway-Poland line at this point would be a very obvious and very direct attack on NATO.
This is all motivated thinking with "It's Russia!" as the end goal.
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.
