This has long been portrayed as the battle between "poor local internet services who pay huge sum to telcos" and "evil international internet services who bombard our poor telcos and pay nothing for it". The main target was video streaming, who makes the most traffic; I believe game streaming simply got caught up by the wide net. In fact the law that mandated the "sender pays" principle was dubbed "anti-Netflix law".

Sidenote: The local telcos have long tried to make their VOD service "Wavve" work. The service is part of SK Telecom, who sued Netflix for traffic payment as they didn't have cache server unlike the other 2 telcos.