Even from the point of view of Uber differentiating in terms of customer experience. Any driver at the moment who gets too many 1-star or 2-star ratings will be

Even from the point of view of Uber differentiating in terms of customer experience. Any driver at the moment who gets too many 1-star or 2-star ratings will be cut off. That's a great thing for customers; it means you can expect a usual experience that's really good. From an employment perspective, it would seem less certain. For example, are customers being fair & balanced, free of any racism, sexism, and so on in their ratings? Being able to fire drivers due to low ratings seems essential to keep high standards, but there's also the possibility that it allows for customers who are not fair to cause drivers to be cut off through no fault of their own.