Yes, good software should abstract the complexity away from the customer. That does not mean the complexity does not exist. My post was motivated by the fact t

Yes, good software should abstract the complexity away from the customer. That does not mean the complexity does not exist. My post was motivated by the fact that the article is written as if this was a trivial change - "The designers fixed the problem simply" - and it really was not (for the developers). "We took a simple idea and made $300million more dollars" - Yes. "We did something simple and made $300million more dollars" - Not even nearly.