Grok has been wrong numerous times, and other users have stated this account has shared AI videos before whether on purpose or by accident. Few others in the comments has said that it's AI and as a video editor/AI video creator myself it seems to be for a few reasons; the motion of the video, the audio/dialogue the audio is using, and you don't find it weird that a person in Israel is speaking perfect American English with no accent? That's not a norm for the area. Also text signs aren't clear, there's just a lot of things that point out to me that it's AI but hey, we're all free to believe what we want.