Ooh… hm… I wonder if the Uzumaki vitality is their ability to somehow resist EMP? So the area around Uzushio is basically a no electronics area except for Uzumaki tech.
I do like the idea of wild feral angry guard robots, too, so maybe they are also there and, because Uzumaki tech, impervious to the Uzushio EMP.
Normally guard robots wouldn’t be a problem for Kakashi (as much as a walking trash can as he is, he is very skilled in his job) but the EMP makes him baseline human.
And hey, guess who are baseline human and Uzumaki tech? 😀
I mean, I still don’t know if Naruto’s body is out there, but this would be a good “we need to find out more about your origins” adventure.