No, it's not. Reaction from Russian side highly likely will be nondescript. Conflict is finely regulated, possesses all features of the flower war. I'm inclined to predict that impact will be minuscule, comparable to ritualized "exchanges" between Iran and Israel.

Remember that Ukraine has next to nothing political and economical sovereignty, and all such targets are selected by NATO specialists.

The level of strategic adaptability of Ukrainian "allies" is, be honest, quite low, as it has been repeatedly shown during fizzled counteroffensive or dead-in-the-water Krynky operation parody of the D-Day beaches.