What I meant was that Apple has, for the past 20+ years, had the reputation of cranking out products that were very, very well polished and refined. The features just oozed quality and they were easy to use and almost always worked. Then came along Siri, which they admitted was still in beta/incomplete, yet they included it in the 4s. Not a big deal, but worth taking note of. Then the maps debacle comes along. They decide to completely buck off Google, Youtube, maps and all, and implement their own map system. People expected a polished product as usual, but it turned out to be buggy, often incorrect and a huge downgrade. That, in my opinion, really hurt the reputation that they've spent years building up. Just my 2 cents.
Now will it cause the death of a giant? Of course not. There is no viable alternative to the AppStore and iOS ecosystem. That is the lifeblood of iOS devices, and something no one can reasonably dispute.