Whenever I take an Uber or Lyft these days, I always ask what the drivers think about the issue, and the uniform response so far (obviously this is anecdotal and not at all scientific) is that they like the flexibility of being able to choose when to drive. For many, this is their second job they do on weekends, nights, or early mornings. They are worried that they'll lose this flexible source of income that are helping, for example, save for their children's college education or pay their way through night school.
I'm not saying that this represents the majority view, or that the legal issue should come out any differently, but I do worry that some of these workers, happily employed as contractors, will lose out on this opportunity.