[actionfromafar]

Your OP just gave examples of bias.

[Hendrikto]

Obviously individuals still have preferences and biases. The idea is that they are less aligned than critics, so they average each other out somewhat.

[jibal]

The claim was "There is no bias or selection".

And there's no evidence for "the idea". Also the "audience" reviewers are self-selecting, and in my experience tilt towards shallowness and bigotry. My own preferences are generally better aligned with the top critics.