And pressure Germany into what exactly? Think this one through. How does removing the possibility of re-opening the pipeline pressure Germany into anything from the point of view of the Russians?
What Russia would want to pressure Germany into is "stop your sanctions and we will sell you gas". A possibility removed by blowing up the pipeline.
The "Russia blew up the pipeline" idea makes absolutely no sense. And if there was any evidence to support it, you know that the whole of Western media would be shouting it from every rooftop.
But instead we have silence, and concerns over "national security"