There are lots of words in this interview but actually little is said.
I don't know - it is understandable that Nikon won't go into more detail about actual products, but their interpretation of what is going on in the market is "good to know". To motivate someone like me who considers the EVF an abomination to purchase a Z camera and lenses, silent photography with no artifact would do the trick, and this is pretty much implied when talking about a stacked sensor.
It's also useful information to know that their focus is now in launching a high-end product. I might want something less expensive with the distortion-free silent shutter but at least it's an improvement that they make a camera with this feature, as it gives hope that they might offer it at a lower price point later on.
Personally I consider this statemant somewhat too much proud of himself and arrogant - and symptomatic for the (imho) management- driven problems Nikon evidently has. Currently they are not the leaders but those that need to keep pace, so the contrast should not be that high.
It took me a while to understand what you meant by contrast, but I'm guessing that you mean the contrast between Nikon's message and how their products are widely perceived online.
A Nikon employee who is chosen to discuss Nikon's near-future strategy with a journalist is going to be someone who can do it with an upbeat tone.
I think a lot of what they say is true, there is a trend towards greater importance of video and it's good that they have been preparing for that at the system level. Lensrentals investigated Z cameras and found their environmental shielding top notch. So in this respect I don't think the message is wrong in talking about how the cameras are used in extreme environments.
Good that the Z9 will have a stacked CMOS sensor (to which extent this is a Sony- Sensor or howmuch Nikon development or tuning this will have faced - we will see)
Likely this is something we will never know without taking the camera apart and investigating the chip (and its peers) with a microscope, since the details of the sensor design are not public knowledge and I doubt they would be published any time soon (of course, there could eventually be a similar account as Nikon have made for lenses in the one Thousand and One Nights tales describing the history of sensors in Nikon cameras). I don't share the fascination with the origins of the sensors unless it is for some ethical reason (different countries may have different environmental or labour protection laws; there was recently a fire in a Japanese semiconductor factory and I hope the employees didn't get health problems from the event). For the user what is interesting is how the camera performs and how much it will cost. I wouldn't know the sensor or processor or grip designers personally anyway, so the names (or their employer's name) would have no meaning to me. Everyone seems to have their own beliefs on the sensor design topic and yet almost no real information is publicly available. It seems likely that Nikon are currently more limited by the processors than the sensors that they use; why does no one talk about where Nikon could get faster processors? Canon manage to sell a very large number of R5 and R6 cameras (and their customers seem extremely happy with the AF, for example) and this was achieved without having a stacked sensor so there are other components in play that have a great deal of importance to overall system performance and where Nikon could achieve an improvement.