"So basically, they traded weight for battery performance which is something I can get behind."
Yep. I disagree. Not happy with Nikon's direction.
I watched the professional photographers lug around huge lenses and get in contorted positions, even one lying on rocks to shoot birds and reindeer. I do not see Joe average retiree now wildlife photographer do anything like that. The Z-9 is a professional camera not a semi-pro retired enthusiast camera whereas the Sony A1, while quite expensive, fills the bill quite nicely.
The crucial question for marketers is who is your target market? How big is the target market for Steves, Thom Hogans and the like?