The missing context here (not your fault, i think people reporting this are being misleading) is that they were using their personal systems in this tournament. That means whatever dodgy software they've installed can't be monitored in a controlled environment, and claims of it being EAC's fault is unfounded.
A proper tournament would have controlled hardware and software, even if playing remotely at a professional level. You can't guarantee these systems haven't been tampered with, even if the players insist on proper security measures.