I guess there's a big difference then, between what I do [and thought of as chimping] and actual excessive chimping. I really only do it when shooting groups, or portraits. it's the best way to check everyone, or main subject, is in sharp focus. As said earlier, I can tell right off, especially when using manual flash, how I need to adjust my settings for correct exposure after viewing just one shot quickly. I'll zoom in on groups to check for sharpness/eyes open across the board [I can do all this within seconds] - I'll do that once per group/set up, and when they change about I'll do it on the next first shot for that group/set up. I trust my settings for the next round of shots on same. As someone said, it's a tool, and I use it as such. I don't check it after every shot.
And just because film photographers never had this advantage, and I do see it as an advantage once used moderately, doesn't mean it's wrong to do so today. Film users will always harp on, let 'em on ...
I used to shoot film as a kid myself. It's not as fascinating as the rose tinted spec wearers have people who never used it believe. I remember all those badly underexposed shots coming back from the printers!
Back OT: from what I can gather on this new model, it's pretty much same as what we already have, D800/E shooters, but 'could' attract more sports/gig/action photographers as a back up because of the faster speeds. It's definitely not a must have IMO say for wedding/portraiture/event/wildlife/landscape photographers.