Because West is week and easily manipulated. Its just a travler guys lol, we are just testing our radio transmitter in Królewiec lol, oh we didnt know those buoys were yours Estonia oops. Shoot someone in broad daylight and there is no doubt you did it, take off military insignia before sending little green men and paid off morons in the West will call it a separatists revolution.
russia wont openly invade Baltics/NATO, they will send little green men under the cover of some self manufactured crisis. A big forest fire, chemical spill, maybe an aircraft crash or terrorist attack. Then it will be "touch our guys and we Nuke you" like they keep saying in Ukraine, with West trembling to cross magical imaginary red lines.
Because they still want to keep a good relationship with Norway.
There's trade and collaboration on fish. Russian fishing and transport vessels are using 3 major harbors in Norway.
Maybe, the USA's governance system seems to be malfunctioning. The 6 month gap in supply to Ukraine has made all of the USA's defense partners around the world, (eg. asia pacific) go "what the fuck!?! The USA doesnt actually honor it's defence pacts!?"
It's an open war with Ukraine only so far. And many are not aware of the wider geopolitics of it, they don't know their countries are at war with Russia. Open attacks would scare many of those people and make them more hostile towards the Russian side. As it stands many are more neutral and Putin even has a significant number of fans in the West.