OK, so what you are circuitously saying is they are far from safe should an enemy try to destroy one. Let's take a huge dam, and the wall is breached. How many die? For how long does the long term threat of death or serious illness remain? How long does the water damage last for? A sabotaged or blown up nuclear reactor?
The Russians are not playing "silly games", they are a ruthless fighting force willing to use all means at their disposal save, so far, nuclear weapons. The West are haemorrhaging money on a gigantic scale interfering in the conflict. Again I say this is not a cricket match, nor are the players bound by gentlemanly conduct. It's not a computer game, or simulation.