For those who care here are explanations of the rating algorithm. Any rating system would have its biases since it is an estimation problem. And it is just a trade off of what is considered a 'good' bias. This system is still entirely based on reviews that people leave.
Wikipedia: https://en.wikipedia.org/wiki/Binomial_proportion_confidence_interval
More simplified: https://www.evanmiller.org/how-not-to-sort-by-average-rating.html