I think you are right to do it under those conditions, I live in a mountain area with winding up and down roads and plenty of deer
Pigs, cows, and elk crossing my roads too. Common courtesy tells you to dim your lights for on coming traffic AS SOON as you see it coming.
That's my problem with drivers in my area. They don't dim until you are Already blinded, if they dim at all. I'm old, had cataract surgery, bulging cornea surgery, and badly affected by light glare anyway. I don't have extra lighting and I don't have a raised vehicle that places the lights higher than they are supposed to be. If I can drive on my roads without the extra lights anyone else should be able too. Staying alert and slowing down will keep you out of trouble in most cases. I don't know how many times I have had near misses in 23 years on my roads. Most of those incidents in broad daylight and it just happened so fast I barely had time to react. In all cases it was my constant alertness that avoided a road kill, ME..
I wouldn't ask others to do as I do, but I would ask that they use their extra lighting as you stated and as you do. Also when someone approaches from behind, they should dim their lights so as to not blind you in the mirror. If big rig driver's can do it, and most do, others should follow their example. Courtesy goes a long way.