Gregory's ServerCalrson-Putin interview has _zero_ traction in those circles. While moderates and liberals are meme-ing it to hell, Ukrainians and Poles are righfully enraged, western conspiracy and "conservative" circles act like this didn't happen. They did invest a lot into making a hype out of it and then - wham - like literally nothing happened when the interview was published.
That tells you enough about how successful it was.