I wouldn't have said it myself but we're a bit beyond diplomatic politesse at this point, and Putin and Wallace are never going to meet, so I'm not sure it matters too much.
A couple of weeks ago Russian TV news put up a picture of Liz Truss next to a word that, in Cyrillic, looks very like the word 'bitch' in English. This was not generally thought to be an accident.
And Putin has, to be fair, started talking like someone who's several cans sort of a six-pack. His speech on Monday was properly deranged. It stunned even very experienced analysts of Russian politics and foreign policy. There's a debate going on about whether he was trying to pull a Nixon Madman Strategy (pretend to be crazy to frighten your opponent into making concessions) or whether he has become so isolated that he's lost his grip on reality, but everyone agrees that what he did and said this week was completely different from what's gone before.
(But there's still no chance of a war between Russia and NATO.)