Is he saying that he would prefer to watch a CGS game to an ESWC final? Is that more or less what he said or am I getting it wrong?

Well, unless I missed it there's no mention of the ESWC or any other event directly, he just says CGS is for him the best and most interesting way to promote (and manage I guess) E-sport.
Never seen a CGS match personally, gotta check it out ^^.