Yes, this station is for an English-speaking audience, but it's also the propaganda arm of the Russian governmeet, which makes it an excellent forum for this kind of disruptive on-air protest. And trust me, the Russian government's leaders will see this video, and many, many people inside Russia will see this video too, thanks to the viral nature of the Internet. So he's reaching the right audience, one way or another.
Regarding Bradley — so THAT's what this is about? You're mad because you support Bradley Manning? Do you think the two minutes this guy took to stage this protest were the only two minutes in the world that anyone could see a discussion of Bradley Manning? Please. And for the record, I fail to see what "horrific injustice" Manning is facing. Even if you agree with what he did, you have to recognize that the government has no choice but to send him to prison — he revealed classified state secrets. If the Army just said, "Well, if soldiers reveal state secrets for a GOOD CAUSE then they can stay out of jail," how do you suppose we could keep any intelligence classified? They have no choice but to punish him — and he knew that when he revealed this stuff. So that's a sacrifice he chose to make — to face prison for the good of a cause. So now he has to pay that sacrifice. That's not "horrific injustice" —that's just life.
But regardless of that, this guy's other political views — and how you feel about the treatment of Bradley Manning — is irrelevant to the subject at hand. Are you saying only people who hold liberal political views in all topics should be allowed to protest human-rights abuses against gays? That doesn't make much sense to me.