The problem with this logic is the manufactures have no control over the iPhone update. The article didn't go into exactly what happened, but it could have been that the device worked fine at launch, but then Apple released an update which caused an issue in the app. Even if it didn't happen this way I could definitely see it happening. Using an app for critical life sustaining medical devices is like playing Russian Roulette, an update from Google or Apple can put you in the hospital, or worse.