Apple doesn't "scramble". They dont have knee jerk reactions. The jobs postings The Register refers to were posted a) on the 11th of September which was the day before iPhone 5 event and b) the day before the iOS 6 GM was produced — no doubt burnt into iPhone 5's in production from then on.
The maps aren't a one-for-one replacement of Google Maps, they never were going to be. They do offer some great new features that Google Maps didn't have available. The only thing Apple would never match Google on was the mapping data. But its important to remember that they can't get any worse than this. Apple's maps are only going to get better. Google better keep an eye on it.
Just another thing about The Register's article; earlier this week we had this from John:
To my knowledge there is no definitive answer as to whom decided that Google Maps was to be removed as the main maps source. Speculation points to Apple but again, not confirmed. Both companies have something to gain with this move, I would say Google is in a better position now.
My personal opinion after having to use the maps: It sucks. I had to load up Google Maps in Safari to access public transit information. I loved using Maps on my iPhone to route public transit trips because it was accurate and always worked. Many kudos goes to Adelaide Metro for making that work. I hope there's a way for them to continue to make it work in whatever application allows it to work.