I'm of course no expert on modern espionage, but yea, with modern spy
satellites, hackers and all the technology available to them, the FSB will really
get an advantage with this pipeline outpost..
The thing I wouldn't like about though would be if they would start using those kind of "outposts" as military bases.
Baltic sea is already packed with commercial vessels almost colliding each other regularly.
No matter what Russia would be doing in this region would be looked at suspiciously.. why, you may ask, because
Russia isn't really known in the world for its high tech and reliable machinery. So when Russia is building
a gas pipeline to a already polluted ocean.. you can imagine... what people imagine will happen.