This.
One of my primary concerns is not tearing up the trail further with lots of wheelspin. That can lead to a trail being closed.
You might be able to make it through a trail with a 2wd using speed and wheelspin. But speed makes it likely you'll damage your vehicle, and lots of wheelspin damages the trail.
Ideally, I want to drive a trail in an easy and controlled manner. Which means low-range 4wd, and using the locker when it contributes to keeping me moving without abusing my truck, or tearing up the terrain.
Yes, I wheeled for years with open diffs, and learned about picking good lines, etc. Then after some of my favorite trails were closed due to damage to the trails, I saw the light of doing less damage to trails to keep the trails open and accessible.
Also to be clear I don't use speed or wheel spin to get to where I need to be. Wheel spin makes me cringe thinking of CV's spinning and bouncing. The fact is a 4runner without a locker is extremely capable in 4lo with proper clutch and throttle control without wheel spin.
Also considering I spent over $1500 on a set of tires I don't like spin them if I can avoid it.