I've played a handful of single draft games. Maybe five? Both losses were due to players afking or dropping out after ~10mins, making it uneven. Out of the 3 wins I have, I think only one of them had all 10 players when it finished. That's kind of frustrating, but I'm usually playing with a RL friend over voice chat and that makes it more fun.
Yeh my friend started recently and found the first 10-20 games were the same for him too, low tier players don't care about leaving basically... When you get out of that "BRAND NEW PLAYERS" bracket it gets alot better.