I would expect the cops to bust someone for drug possession. They have three witnesses and they could drug test the users. I don't think that's a he said/she said situation. You have multiple witnesses and they can be searched for drugs & drug residue. It might ruin their career at Uber, but do they really want a career at Uber at that point?

It seems a lot more constructive than complaining about it anonymously in the news over a year later. I mean, a bad culture persists because people allow it to, so I don't understand why they waited to fight it, given their claims.