Earlier quoted context omitted.
And don't forget that in the Baltics there is a fairly large contingent of Ethnic Russians who are the perfect pretext for a liberation exercise. https://en.wikipedia.org/wiki/Russians_in_the_Baltic_states
I disagree in Estonia and Lithuania. I think that 1) many ethnic Russians have seen the quality of life get much better living in these countries and while they may still hold many similar cultural values, would not want to live in Russia and 2) that the governments of the countries are well aware of the risk and have plans to counter it. Not so sure about Latvia.
Now, Lithuania has only a relatively small number of ethnic Russians compared to the rest of the population, and in Estonia the it's somewhere in the middle (15% or so). Latvia is roughly 50/50.
And yes, the governments of those countries are well aware of the risk, but that is not the same as not having that risk in the first place.