Well they did say it was their competitive mkdenonly. So that is meant to be "more than a game". It should be more controlled than normal mode.
So fir hear it would be IB and Trials.
I understand that completely.
It doesn't negate the fact that if you start something that most people will be taking more seriously than a normal play session (Competitive mode) then if you leave early there should be a penalty.
Besides, using their rules if it was real life things you were dealing with you likely wouldn't be back before the round you were in ended anyway. So it's still reasonable and logical.