They didn't know about those at the time of release; they were mistakes. The recent MacBook Pro got an extended repair program as it was released. Which could

They didn't know about those at the time of release; they were mistakes. The recent MacBook Pro got an extended repair program as it was released. Which could be either a way to assure customers, or a recognition of the fact that the kb was still too delicate and they had no choice but to put it out anyway.