As far as I'm aware, there is only one dev on the team that plays the higher content. He was in one of the top clans that the solidfps and widdz names were in at the time. They all did the raids, at least from what I read. Don't know the developer's name but I somehow doubt that developer would grind the game like so many of us do.
Still, what I've been told, the raids get classed as Hard/Challenging/Heroic content. Heroic bosses.
I couldn't see him doing it with a controller.
Look at even Legendary content, you're in the 180 flicks and fast aiming because of how aggressive the ai is in those missions. Even Heroic can be that to a degree. Legendary 99% of the time, you peek, you're near dead.
Even when I watch console players on Division streams, when they start getting flanked on Heroic and Legendary they cannot turn fast enough. Even simple things of running away without firing and checking out your surroundings, they're gimped on console.