To be honest, I think the world has bigger problems than "why is our kindle app not getting the most app-store reviews and stars".
which is perhaps why the email subject only got a single character
But it caused a team of apparently quite talented people to 'drop everything' and scurry for an answer.
Of course this kind of this kind of thing is important to individual businesses and needs to be done, it's just a shame to see "The Best Minds of My Generation Are Thinking About How To Make People Click Ads"