Leave friendly championship before it's starts

Hello all,

As the name says it, me and a group of fellas can't find the way out of a tournament, during the applications time, and it seems according to other threads that there is none.
The thing is, in the "Rules" of Friendly championship event, tab "Details", it said in the 9th dot : "Once Friendly Championship start, it is not possible to create, join or leave until the end." ==> This means to me that there is supposedly a way out on hand for players to leave a tournement before the starting time, apart from being kicked by a player (creator of championship) you cannot ask to kick you out because you simply cannot communicate in-game x)

What do you all think, should this be acknowledged and treated as a bug ??? )