How can we reconcile the permissibility of saying "a natural defect" (ʿayb khalqī) with the words of the Messenger of Allah, peace and blessings be upon him, "All of Allah Almighty's creation is beautiful," and al-Khidr's attribution of defect to himself when he said, "So I intended to make it defective"?

Allah, the Most Glorified, is the Creator of all things, and all His actions are good. Evil is not directly attributed to Him; rather, it is created for profound wisdoms. When evil is mentioned, it either falls under a general statement like "Allah is the Creator of all things," or it is attributed to its cause, such as "from the evil of what He created," or its agent is omitted, as in the statement of the believing jinn: "Is evil intended for those on earth?" This demonstrates perfect reverence towards Allah, because His good actions are directly attributed to Him, whereas what is perceived as evil has its agent omitted or is expressed in the passive voice. The phrase "congenital defect" is not considered disrespectful because it is not attributed to Allah; rather, it means that the defect is present in the original creation and is not incidental.