Your post doesn't contradict that, but it seems somewhat important context for anyone who isn't aware since the post mentions both Twitch and Amazon but not the link between the two.
The first line of the linked article says: "Twitch, the popular game-streaming site owned by Amazon, just inked a deal with one of the most popular game developers to broadcast a host of game tournaments exclusively on the service."
Your post doesn't contradict that, but it seems somewhat important context for anyone who isn't aware since the post mentions both Twitch and Amazon but not the link between the two.