[tjohns]

From the first paragraph of the linked article: "The city's Taxi and Limousine Commission voted Tuesday to establish a per-minute and per-mile payment formula for Uber, Lyft, Via, Juno and Gett that is supposed to result in drivers earning $17.22 an hour."

So it sounds like this isn't an actual hourly minimum wage, but instead a time/distance-based formula that's supposed to be equivalent. Whether that's based on 100% ridership or past averages isn't specified. Unfortunately the article doesn't link to the actual legislation, nor does any of the other articles I found from a cursory web search, so details seem to be lacking. (I really wish news articles would link to authoritative sources...)