First of all, drinking your own urine, except in case of extreme and life-threating need, is ridiculous. Your body got rid of that stuff for a reason. Yes, it's sterile. So is concentrated sulphuric acid, but you don't drink that.
As to the quote, you aren't drinking pee. You aren't even drink incredibly, homeopathically dilute pee. They don't pipe the water in the reservoir direct to you house. The water is treated between the reservoir and the household.