@7 don't disagree, my point is why would you blow the pipe unless you were worried the Germans were going to cave
Cortez burning the boats
As far as I can tell, Russia has no interest in sabotaging their own gas pipeline.
There is however a country that was against Nordstream 2 from the start and has maintained consistently that it shouldn't go into operation.
This country has a geopolitical interest in not having Germany buy gas from Russia and also an economic interest, since they sell liquefied natural gas to Germany.
This country's president also said he can guarantee that Nordstream 2 won't go into operation.