I guess the issue with the team cards is - the officials get them, make notes on them, then after the game give them back to the teams. So unless the player has done anything wrong then nothing is really recorded (maybe goal scorer?) but thats about it. (From what I've seen anyway. Someone please enlighten me if I've got this wrong)
Clubs then have to send into Mainland Office, one assumes that would be scanned these days.
Do faxes machine still exists?
Teams sheets must also be used to pick up the yellow and red cards.