Ehhh I don't buy the thesis. The author is suggesting all Uber rides run at a loss, but Uber makes a killing on some rides. Not every ride is subsidized, I've paid $60 for a 20 minute ride through LA during surge pricing, and I'm certain both Uber and the drive made a profit off me. I've seen stories of $300+ Uber rides too. There's no way Uber and drivers don't make money off these.
I know many rides are subsidized and Uber loses some money on them, but implying Uber's business model is a failure based off average cost is a fallacy.