Interesting concept. Just looking at a media update on the case, what are presumably some of the key questions were
Uber set the rates - ETM’s negotiate and agree a rate
Uber decides which jobs you do - ETM’s decide whether to accept the client
Uber prescribe the route (work done) - ETM’s role if agreed upon by discussion and agreement
Uber uses a discipline system - ETM’s well, this is the interesting bit, apart from being dismissed, are ETMs subject of the client’s disciplinary system?
Overall and even trying to make it work into being an employee, I can’t see the Uber case impacting the ETMs unless its to go through the process with the operator and document why they are or are not an employee so both sides know and agree where they stand.