While you are correct, its a new system and systems mature over time and that why Nikon released the lens roadmap at the same time but the choice of release day lenses looks poor for sure.
Noting that, there is a serious lack of telephoto lenses on that roadmap with the 70-200 f2.8 being the longest being confirmed now which seems odd.
In addition it seems that other than the 58mm f0.95, all the other lenses are pretty much standard offerings in terms of focal length and apertures ranges and is a missed opportunity in my mind.
Whats the point in just replacing the existing range lenses on F-Mount? Why not offer something new and different?
I just don't know who this setup is for this early, I don't see it bringing in the Canon or Sony crowd, m4/3 people won't want the bulk, Nikon Pro's wont be able to stand the 300 shot battery life and the cost is limiting to anyone new in or upgrading.
So in my mind it will be the true, die hard Nikon crew that will buy in early which is probably good because Nikon are seemingly incapable of managing their supply chain properly of late.
If you own a large telephoto lens, why would you ever bother moving away form a D850/D5 to one of these mirrorless setups? The long telephotos will come eventually, but they take years to produce and none of the cameras are up to the job yet. Eventually sensor based PDAF will be good enough that pros will be more interested but until then DSLR will still rule.
The only real advantage or a mirrorless setup for a pro is very fast continuous shooting for sports and BiF. Neither of these cameras have the grunt and are not marketed towards such pros.
These camera are for the D600/D700 type crow using a nikon 24-120 f/4 etc. The Z6 would be a nice upgrade to a D600 owner for example. The Z7 will perhaps appeal to landscaper shooters once the wide lenses are out but it doesn't provide any advantage over a D850.