What refutes you is the fact that Putin take territories that are not Russia. Plain and simple.
While we have proof that he is willing to take something, we have not proof that he will stop after this time (which is, btw, the second time he pull the trick)
I think you are seeing this as racism when it is just some old good skepticism about a country that is famous for faking everything.
Maybe they really done what they say, or maybe it is just some proof of concept that need to be ported, if possible, to a viable product stage or maybe it is just a fake, we will see.