I think this is Tim Cook's way of diffusing the press. If Apple does these things then what does the press have left to write about? The story suddenly becomes old news.
However, I would like Apple to keep the pressure on the Maps team to get things fixed. I am also glad that I do not work on that team right now. I don't know if this is falling on Scott Forstall or Eddy Cue or both but somebody is getting verbally whipped right now if Tim Cook is writing these kind of open letters and Apple is suggesting alternatives to their first-party Maps.
As an aside: the new maps has been fantastic for me so I cannot complain about it. I love the new features and since this news I have used it more often to see if I could spot a problem, but so far, so good.
no one is getting whipped. everyone knew that maps was crap for a lot of areas. the only way to fix it is to release and fix the errors. that's how google did it years ago. google maps sucked when it first came out
in places where the maps are good people use it for the navigation which the previous app didn't have.
most of this is blogger hysteria like antenna gate. which wasn't a big deal either