I think blind pick in general is unhealthy.
Now this might affect people who love the jump and play mentality and the 50 second queue time, however, I think people who avoid draft (i have many friends that do) and then proceed to play ranked, I don't think its the right way to put fresh players into ranked from blind pick. They should experience a different champion select with the role selection in normal draft ideally for a couple of games and maybe understand auto fill rather than ruining a ranked game. Just a thought...