I don't like what they handled interaction with the AppGet dev either, and can't understand why they can't seem to get a great solution working, but I would argue it's not 3E approach. In this case it would actually benefit them if AppGet stayed alive because it serves their users and doesn't present any danger to them whatsoever. I assume that they simply decided internally (for whatever reason) not to acqui-hire the AppGet author and then rolled out their own.
How they managed to do a bad job with so many awesome examples is however beyond me.