Coincidentally, I discovered this today as well, and now after finding this thread, I must say that I find it to be a really bizarre business decision. Of course, it is your business decision to make. It is, however, extremely disappointing that I can't do something as basic as simulate an engine failure in the sim on a product that sells for $64.99. That's hardly a commercial use case, and it's not a product limitation that I've encountered with any other of the many X-Plane aircraft that I've purchased over the years.