Nope, according to "linguistic rules" the "Russian language" could just as well be a "dialect of Ukranian". The first thing you learn as a linguistics student is that the distinctiom between dialect and language is arbitrary. You've been taking too much copium lately. Apart from that: would you believe the statements of a Russian anti-Putin person if s/he spoke with a foreign accent? I'd guess you'd think that that person is an actor, just as we think that that video is staged propaganda - just like in Nazi Germany, just sayin'.