Over the latest story: A potty break that might have cost LoL Pro Team the game

What could have been the consequence if they would've lost the match? or what should have been done in that case. I know they were warned but still...
My team witnessed a similar scenario on a LAN-event. Player went off to piss and in those 5 minutes margin the other team got an edge and won. We knew they had it coming when he went off...

News Source: killping.com/blog/league-of-legends-takes-potty-break-very-seriously