So Boogie's saying it has 2 units, it's got a handheld part and a console unit, with two separate units, but that both work together, he's not saying it's a tablet which houses all of the processing tech and that the console is just a dock that functions as a dummy unit which only transports the game your playing to the TV.
If the handheld was the center of the system then it could play the full game anywhere using only it's own processing tech, it wouldn't need the console to be complete.
This isn't a single unit that functions like a hybrid, it's a console and a handheld you buy in the same box at the shop and you have everything, Nintendo can use one complete system with these two units to sell the future of their handheld and console games to a single audience.
The beauty of this is that you don't have the limitations of a small tablet form factor, but you can play everything that Nintendo can make going forward and Nintendo's developers will have way less limitations compared to the tablet hybrid approach that Eurogamer were led to believe NX was.
