Of course, in local legend, Sanliurfa is the area that Abraham came from, not that Sumerian city. As soon as population could explode, due to easily available food, because of the end of the last Ice Age ... the hunter/gatherer situation that contained human development, was obsolete.
What I have read about Gobekli Tepe is that was a site for the exposure of dead humans to carrion eaters, like the Towers of Silence of the Parsis. Also Sioux Indians in N America and Tibetans today. All human ritual is connected with birth, marriage and death. Women are the bringers of life, men are the bringers of death, and marriage is where they bury the hatchet (until divorce).
I won't be excited until they find the 2001 movie monolith ;-) Oh, they did, in Utah, and now it disappeared again. I told you ... Mormons are aliens ;-)