People have talked about microeconomics, gig economies, labour shifting, bad old days, safety, subsidies, licenses.... but we've gotten no closer to understanding;
"Why Is a Company That Lost Billions Claimed to Be Successful?"
To answer this one must ask "What is financialisation?" The short answer is; a system in which the success or failure of a company is of no relevance to its "value". Under financialised logic it is absolutely immaterial whether Twitter, Uber or whatever make a penny. Ever. Or whether any of the stakeholders are served. The rules of traditional business go out the window. All that matters is the stock price of a tradable financial entity (a company) based on brand confidence/perception.
Under that system, Uber is successful so long as the financial market says it is. When it decides it's not successful, it's not. One has to realise that a total detachment of political economics and power has taken place.