Not a flop.
They just needed to stop the recent trend of too many people opting out of the top end model and buying the previous years model thats 'good enough'. I think last year the 4S/4 sold over 50% of phones(when the 5 was the top end). That had to end. The top end phone has to be the best seller to preserve margins and profits.
The 5C is not a failure. It has a very specific target market. Its for those who are very price sensitive and don't care about having high end tech. Its also great for kids because of its plastic case.
So... are you saying that the 5c isn't as good as the 4 or 4s, so more people would prefer the 5s?
Didn't you say the 5c sold better than the 4 from the year before?
Or... wait... hold it... okay... uh... just a minute...
I'm not quite getting your argument.