You make an excellent point. It enables them to create a "workout platform" where all their products interface directly with their fitness tracker. Their customers presumably wouldn't mind wearing a separate Peloton fitness tracker while working out whereupon they could then upload their data to their phone if they so desire. Then they can move all the multi-device interaction complexity to a single product line, the fitness tracker, and the reset of their portfolio only needs to interact with a single product - the fitness tracker. This actually makes a lot of sense.