Removed do to inactivity?

i just got leaver status for no reason, i was in prelobby in ranked and was watching what are teammates picking and had last pick together with another player and asked him in chat what he prefers tank or heal, i chosen tank etc and didnt click lock, as i didnt know what team mate gona pick tank or heal. game should lock heros automaticly, but instead i got kicked to main menu and got a leaver status? what am i suposed to to when in prelobby insta lock and not adept to teammembers ??? this penalty sistem of yours blizzard is a joke same as mmr. game is not worth playing as it gets wors from week to week.