Uh, the FCC listing from early July said nothing at all about what it was for. Just that there was a product in the approval queue. You, and the others who latched onto that listing, are making an assumption based on little data to claim what it is, that it is a set-top box with 4K capability or anything. Whether it ever makes it to market is another question.
All I reported on here was what the other articles were saying. Your claim that the Wall Street Journal says that Amazon was going to release a $50 tablet. Show us your link. I provided mine. Amazon is probably using a reference product manufacturer for such a cheap tablet now. There would be no need for doing their own engineering. . . and little wiggle room to amortize design engineers in such a cheaply offered tablet.
Sometimes, what you claim is FUD, is merely factual data.