Ball Pythons are ground dwellers and height is not necessary, the tubs most people use are about 6 inches high and they are working perfectly for ball pythonsidk how a tub can offer that much head room. maybe im not picturing a big enough tub.
It basically works the same way, you use a UTH or flexwatt heat tape and a thermostat, to help maintain proper temps and avoid over-heating.also can u explain the back heating(not right term)...is that basically a uth slapped on the side of the tank/tub/vivarium??
In most cases I would recommend belly heat over back heat (back heat would require a heated room with table temps year round)
This is a 15 quarts quarentine tub but you get the idea
This type setup allows you to easily maintain temps and humidity providing your animal with optimal security.
It is not about space it is about providing the proper environment for your snake whether you have one or 10 it does not matter.
They're are different way to keep BP and I don't see why 1 BP could not be kept in a tub.
As far as not being visually appealing this does not matter (I am pretty sure the snake does not care)