Haven't we seen these sorts of claims over and over and they're just about always incorrect?
Hasn't Tim stated, on the record, that you cannot evaluate overall demand by looking at any small portion of the supply chain? The process of building an iPhone is complex and we don't know what Apple's plans were to begin with.
IF (that's a big if) there is a production cut, how do we know it wasn't in Apple's master plan, and how slim are the odds that Apple tells it's suppliers any reasoning behind any changes? I'd bet Apple tells suppliers what to make, how many to make and where to send them when complete and that there's just about zero explanation as to why.
And for all the comments above trying to explain the, supposed, cut: You're all pretty significant Apple fans. I know because you're here commenting about this. To most consumers their Phone is a not much more than an appliance, they don't focus down to details about screen resolution, brightness, speed, Wifi version, etc. The overwhelming majority of consumers just don's care about the specs of iPhone, just like almost no-one cares about the specs of their refrigerator like: type of or amount of refrigerant in their refrigerator, the type of glass used in the shelves, the swing range of the thermostat or any of that. They just like the style, trust the brand and it fits their budget and kitchen.