Golf is usually played on a relatively level course......hunting often involves steep elevation differences.
In golf, a par 3 is usually less than 200 yards, a par 4 is around 400 yards and a par 5 is around 500 yards. From the tee, you know the distance to the hole.......so you don't need a range finder for your tee shot. Golf courses also place stakes at certain distances to indicate how far to the hole. You might need a range finder to determine distance for a final shot to the green. A golf range finder doesn't need to do much.
Completely different with hunting......you need to determine an accurate distance to your target and you aren't getting any help other than what your range finder indicates. And it needs to give a correct distance for elevation differences. If you never plan to shoot beyond a certain distance, you don't need to pay for higher priced range finders with double or triple the range capability.
Just a few simple minded observations. Other than that, it's all magic to me.