If I have to choose one of the two, I'd choose the latter.
I'd not want Apple to be judge, jury and executioner, because they have no legal obligation to ensure a fair, transparent and equitable process, and so the more willing they are to take unilateral action, the greater the risk for me of relying on them for income is.
In fact, given stuff like this, I'm very happy not to be dependent on any income from the app store that can be just yanked away at a moments notice without any real recourse.
The engineers used their knowledge on speech-synthesizers to make a similar app. Just like an Airport engineer leaving Apple to build wi-fi devices, or an iPod engineer using his knowledge of hardware and interfaces to build modern thermostats. Hmmm...
It's not a stretch of anything because it's not in any way, shape or form a qualifier for the case at hand but an example used in making the case for "gatekeepers" acting without court orders if they believe that is for the best of their keep.
Actions like this only serve to highlight the dangers with the walled-garden approach... or maybe, better said, by acting in this way, Apple makes the walled-garden of iOS a less attractive environment for developers and reduces the motivation to innovate using their platform.