Google wins, Apple wins, users win (not right after the release of iOS 6, but still). In general, the decision to remove the old Maps app was good.
Google makes money off of us primarily by selling our data, in one way or another. Apple makes money off of us by selling us phones, primarily.
One of those companies (Apple) was dedicated to keeping the customer experience positive and found themselves with few options. The other (Google) took an action that harmed customers they shared with Apple, to hurt Apple.
I know who I want to keep doing business with, as Google begins to close the Android ecosystem and people tend to forget that a significant core portion of iOS is open-source, just like OSX. I doubt Android will continue to be much more open.
If we're talking about blame for Apple Maps being sub-par, obviously that's Apple's fault.