Are you denying it? I mean its not confirmed that he cheats until he has a ban, but its likely. Since its alot of money on the line and they made alot already, surely they can buy cheats from the best coders. Most top atlethes in all sports cheat and use steroids, even actors/models use steroids.
Why would e-sports be different? As soon as something gets competetive with placings and money to be made thats when people cheat to get advantage and be in the top.