We're just arguing about degrees of error though. Either Nintendo honestly under-estimated the at-launch demand for this product, or they didn't give themselves enough time to address it, or they are trying to maintain discussion around the brand by generating news stories about a (manufactured) shortage, or something else, or some combination...
Either way, Nintendo made a mistake somewhere by having a marketing hole to plug, mis-estimating demand, not properly planning... no matter where the exact blame lies, or how unintentional the mistake, Nintendo is a billion dollar gaming company who's been doing this for years and HAS to do better if they want to be able to continue contributing in this market and this medium.