That was my reaction. I can build a moat by selling anything below cost. But it doesn't really say much about the business viability, and what happens when you raise prices. Does demand shrink, or does another competitor with money to burn undercut you until they are out of money? Or, maybe...things work out.
It just doesn't seem to prove much beyond "subsidized pricing is popular".
ie MoviePass. As soon as a unprofitable company loses its investor backing it doesn't matter if they control the majority of the market, they are still doomed.
It just doesn't seem to prove much beyond "subsidized pricing is popular".