No. It simply means that Russia will take precautionary measures to target the systems when they are installed. Missiles will be allocated to take the system out in time of conflict.
But that goes without saying. I mean, if it somehow ever came to pass that we were at war with, oh I don't know, Canada we'd take out their sites. If this were all that Russia were saying she wouldn't have said anything.
The real answer is that 40% of Russia's foreign policy strategy is based on trying to say scary things so that other nations will do her bidding. Russia doesn't want these missile-shield sites installed in Poland (for whatever paranoid reason) and so, she is trying to say scary things in the hopes that Westerners will get scared enough that it won't happen.
Whether it will work remains to be seen.
Putin stuck his foot in his mouth.
If Russia attacks Poland, I feel he will regret
the day that he did, because the response will be
so overwhelming, and disasterous for the Russian people.
He may want to think, and blink, of what he says. He will get more than he bargained for.
Bullfrog