"Review panels are created for each dispute and consist of randomly selected reviewers." - And on what algorithm is the randomization of reviewers built? A simple random, or a sample by rating or by the number of coins on the account?
Uh, no, I can only guess the answer to this question. Most likely, a sample will be sampled according to a number of criteria. Most likely, all criteria will be taken into account here, that you wrote
And I think that if a sample, especially a multi-criteria one, would have been written about it accurately in White paper. This is quite a significant part of the work for both freelancers and customers