The changes described in the bill seem surprisingly minor. As long as Uber isn't expected to pay its drivers a fixed salary, or control their work hours, I don't see how "better benefits" will fundamentally destroy their business model. It is fundamentally no different than raising the rates paid by riders, and passing those increased rates along to drivers in the form of better benefits.
As long as it is applied consistently to both Uber and Lyft, neither of them will lose market share. Ridership will decline incrementally when rates are raised incrementally, but the majority of Uber riders aren't going to take buses instead just because prices went up 15%.
I've long been a fan of the gig economy and of companies like Uber/Lyft, but the new regulations described above sound pretty reasonable. Saying they will devastate Uber's business model sounds like clickbait on the part of BI, and FUD on the part of Uber.