Quote: “Not only [is the] Brazilian bureaucracy […] extremely horrible for foreign companies, […] but also there’s a huge grey market of not only cameras but all sorts of electronics and other types of products to contend with.
Taken from the PetaPixal article, which is an excerpt from a comment by a Brazilian reader posted with the article.
Brazil is a very large "emerging" market that could be a new economic tiger if not for the socialist, interventionist bath water it has to operate in. Unless a global company has a manufacturing presence in Brazil, it is very difficult to market your products through legitimate trade channels. As the PetaPixel article notes, Nikon has essentially decided that since most of its products are sold on the grey market, the grey market can support its products. It's not a sign of troubles for Nikon.
Photographic equipment is a funny kind of consumer product, because it is also used for making a living and professional customers need a completely different level of support than consumers of something like a toaster. Chances are that the camera equipment is more reliable and durable, but customers aren't going to be satisfied with just throwing away the old stuff when it doesn't work.