Nikon was stuck carrying a product line of which the overwhelming majority of their customers did not approve. Camera buyers and wildlife watchers are most commonly anti-hunting. Nikon even ran anti-hunting as campaigns in the past, “shoot photos, not bullets”. Their rifle scope lines have been their redheaded step children.
I would contend, it’s NOT accurate to say they have not tried to keep up with evolving market trends. Frankly, the opposite is likely the truth - they’ve chased the dollar with more rapid evolution of specific models than almost any other brand. They marketed BDC hunting reticles for long range hunting, rode the predator calling wave of the early 2000’s with their Coyote Specials, pumped out a handful of AR specific scopes and mounts, and most recently threw the Black series at the new Long Range Precision Rifle competition trend. To say it all at once like this, I can’t think of any other brand who has tried to stay as closely in step with customer trends as has Nikon. Maybe it’s fair to state Nikon spent too much money chasing trends and didn’t deliver proper products, or that their bets didn’t come up in their favor often enough, but it’s obviously not apt to say they let trends slip by them as some other brands have (cough, Leupold, cough)...