What stands out to me most is what Gruber didn't say. This is not a man excited about a product.
I remember Wozniak somewhat recently stating that he was worried by Tim Cook stressing technical specs in presentations. He said something like: "Steve wouldn't give them numbers, he'd just say that it's blazing fast." People don't buy iPhones for the processor.
In the short term, the 5C will probably help Apple's bottom line. But in the long term, it's going to move them into the company of their competitors. Gruber says the 5S is the Lexus to the 5C's Toyota. But a Lexus is called a Lexus. Both of these phones are called an iPhone.