Okay, I guess I didn't spek Nikon back then. Either that, or I didn't pay much attention to something that expensive, or didn't really have a clue what a crop sensor vs full frame was all about.
Thankfully, when I make an ignorant (not stupid) remark there are folks like you and Stan here to correct me. The next time I say it it will be stupid.
You make an interesting point about never jumping from a 0 to 2. However, someone looking at Nikon from the outside might infer that among the DX line that the D3200 & the D5200 must be later technology than the D7100. Maybe, if they were to merge the D300 & D7000 successors together, it might become the D7400. D370 or D470. I know grasping at straws.