When users attempted to stream the network on multiple devices at one time, they get an error message. Here is the message that they get:
STREAM LIMIT EXCEEDED
Our records indicate that multiple users are currently watching video on this account. Please stop playing on other devices to continue. Visit wwe.com/help for more information
Netflix, which is also a streaming service, allows multiple users on one account, but you have to pay an additional fee. WWE may be going in this direction.