From a different point of view he's pretty lucky , every guild but alchemy gave him the choice. Those random+1 stat in a long term is very helpful, since he still can't cultivated properly.
The elder from the Demon Sect just said that Gu Xi might have an unfathomable force behind him that prevents them from investigating him but the next second, he actually suggested killing Gu Xi before he grows. Even a child would not try to bite a dog.