Again, role-less queue does not force you to choose any character or role
If one chooses on the basis of character winrate, one has chosen freely with that as the main reason for their decision. This was a choice. In no way was the character forced to make that choice
Further, if i have practiced a character showing a low winrate for many hours, i am confident i will gave a better chance to win if i choose the character showing a high winrate but have rarely played