This sort of communication seems more unambiguously good, though. Not sure if this counts as backtracking, but it's certainly a new degree of 'transparency' (or 'not complete opacity') and I think it's refreshing.
I guess there's actually a bit of previous from apple for this sort of thing, such as their open letter about the iPhone 4 antennas, or about Foxconn etcetera. Still this feels a bit different.