Desert horticulture is tricky for nondesert people. It takes years to begin understanding desert horticulture. I have 40+ in my field. I know the desert and I know how to grow plants in the desert, desert or not.
How resources are applied is different in desert horticulture. Do you want to just grow plants in the desert or do you want to do it sustainably? Your choice. I maximize desert production while I minimize the use of desert resources.
Desert horticulturists work in the desert and live in the desert. I know the desert. I don't live in wet climates and work in the desert. I don't make wet climate mistakes and chalk it up to a "experience".