There are other reasons for craving complexity. One is our simple lack of courage in facing our own deficiencies. The Book of Mormon uses this terse phrase:
"... The guilty taketh the truth to be hard, for it cutteth them to the very center. (1 Nephi 16:2.)Most of us don't like to be cut to the center, and when the gospel standards cut us it hurts. The tendency is to deal with the pain by rejecting the surgery.