Kremlin mouth-peaces can express their bullshit worldview outside of the EU, and they do that quite liberally. It's up to society to ignore them, ultimately it's everybodys own decision. But if you come somewhere, spread propaganda while being paid by adversaries, then you aren't welcome. I applaud the EUs sanctioning of these individuals, and I don't really care to hear from pro-russian folks why that's a bad thing in their eyes.
I don't like "Kremlin influencers", that said the Streisand effect is real, and the slope is very slippery from here to include other people along the ride.
Will we also sanction Elon Musk and other pro-MAGA individuals after the current rift between the EU and the US? Why not include Chinese ones, too, who are actually quite active? Also, far-right influencers? Far-left? They are nazis/communists after all!
Or, if you are German, consider that saying something offensive about a politician is "attacking democracy" and sentence people to prison because of untasteful memes.[0]
Of course, all of this can be justified and most undemocratic/less democratic countries get along with those rules, but at least let's stop pandering to "values" that have become pious words without any real meaning.
[0] https://archive.is/tgdag