ALL RANDOM means ALL champs available. Not ALL(but 10) RANDOM.
And People keep queue dodging because they don't know what mode they're in. A helpful little pop up explaining the dumb new system would be nice. Just sat in queue for 22 minutes trying to get into a game from dodges, which happened almost immediately upon entering the queue.
Probably the worst update you've made to the game in a long time.
I mainly play for the random chance I'll get someone fun like Fiddlesticks and faceroll, and he is banned almost every time. (People should be banning LOW TIER champions so they don't have to get them and reroll or get stuck with someone useless.)