But I have proved what I'm saying is true. Ball pythons in the wild are exposed to Sunlight every single day through the moon and every time they eat.

In captivity breeder mice 90% of the time are just kept in a box or what not just bulking up to get eaten. While in the wild they are exposed to sunlight, eat live foods that contain vitamin D. So in theory most likely the mice being fed to our snakes aren't giving much vitamin D.
And then some owners like yourself are covering all 3 sides, plus the snake is in its hide all day so is it getting any UV at all? I agree BP probably need the smallest amount of UV for their bodies and probably nothing any owner needs to worry about. But I believe more UV is beneficial in captivity cause our creatures may not be out in Africa roaming but at least we can try to give them an environment some what similar.

But to each their, as long as a snake is eating and shedding well and no signs of stress it's a happy snake. And I don't disagree with the 3 covered sides, that's why I asked about it but I'm just staying why I took a different approach