Did you get stuck when it was light or after dark?
After dark but that has absolutely nothing to do with the "why" of it all.
Besides I am running three 10" Rigid LED lightbars on the front and three 6" bars around the sides and back..it is daytime all the time
The stuck was due to my lack of knowledge of lockable front hubs matched to an ARB air locker and what to do when a hub fails.
Luckly we had some very smart people who were gentle with me and between airing down even more and a quick tug by another rig we were driving around just fine on the beach.
I am also still getting a feel for the proper tire deflation for each trail condition. This was my first time in a Sportsmobile on a soft sand beach and my first air down wasn't enough.
Again night time had nothing to do with the incident, I run at night all the time and love it..Arizona, Mexico and many other places around the world. Of course that refers to trail driving, on the highway is way different.