That kind of an attack would not really bother the Russian government at all. If anything, it would give the Russians an excuse to launch cyberattacks against other countries – “they’re attacking us, so we’re striking back”.
Likewise, if there are Russian people living in your country, it’s counterproductive to harass them in any way. I don’t know if you’ve noticed, but many Russian embassies in European countries have recently tweeted asking Russian people living in those countries to report any “harassment issues” to them → “We’ve received reports that Russians are treated badly in country X, maybe we should liberate them as well”. You know how the spin goes.
So, in short, please exercise restraint. Do note that there may be Russian NTP pool server operators lurking on this forum as well.