Of course it does - Poland is entirely relying on the Norway to Poland gas pipeline, if that goes then a country of 50 million people has no gas this winter. Blowing up the Nordstream was(to me) a clear signal that EU needs to be careful or the Norwegian pipelines are going up next.
What has Russia gained with this?
The point being - Russia has sent a very clear message that if we don't stop pushing back on Ukraine, that pipeline is next to blow up. There is almost nothing we can do to prevent it if they want to make it happen.
No. It would make more sense for Russia to quietly blow up Baltic Pipe and say nothing.
People ignore acts of war all the time to keep the peace where nuclear arms are involved.
NS1 and NS2 aren't shipping any gas, and notionally are "Russian": dramatic but no change in the status quo.
Blowing a pipeline between two NATO members which is shipping gas and imperils their population is very different: NATO can't ignore that.
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.
Like it makes no sense for them to invade with the state of their army, shell a nuclear power plant, dig trenches in the Chernobyl exclusion zone, waste rockets on civilian targets? Why are you assuming Russia to be a rational actor?
1) Russia has proven itself to be a highly disruptive and irrational actor
2) European dependence on Russian fuel is already ending. By the time anybody is ready to trust Russia with energy we would have moved past the current reliance on gas. Completely destroying NS1 and NS2 don't change much there.
The only conceivable motivation I can come up with for Russia would be a 4D-chess false-flag. If they were to already assume that there's no way the EU will give in to the gas blackmail this winter, blowing up the pipeline and sowing doubt on the US or Ukraine itself being behind it could be a way to divide support for Ukraine. However, it would be an extremely risky and expensive bet with no guarantee of it working.