The current rules do not seem sufficient.

What are your thoughts on solving this issue?

Mine are:

Tell the players to man up and not be paranoid; I doubt what guard is insinuating is occurring. If other people believe it to be true, have an admin join the skype channel used by the casters/agent + ash.

Give the players the right to enforce a "Demo protocol". Each player is allowed to say no streamers on server, I want to force demo protocol. The demos of both players pov is sent to the cup admin, which is then sent out to the streamers to stream that way. This could also allow all games to be casted if some were played at the same time.

What do you think?