Spectators don't watch the game on the same server that's hosting the game. The host server sends the traffic to a 'relay' on a delay, which spectators then connect to. Similarly for the HTTP streamed games, the game server is writing the data for spectators on a delay.
> the fact that Post Office Ltd has inherited the ability to prosecute crimes committed against itself
Any private citizen or business in the UK has a right to prosecute crimes. It just costs a lot of money, so you can imagine how it's used (spoiler: large companies/wealthy individuals against poor people).
This ultimately resulted in a new restriction in a bill making its way through Parliament that "a company must not be registered under this Act by a name that, in the opinion of the Secretary of State, consists of or includes computer code".