Oh I think you're right on it with that one as when you zoom it loads higher res & Clicks back to normal.
I feel Kerfer has something along the lines of: Go to x,y,z -If pathing & Velocity is <below certain threshold = Jump. However if you are correct then it would be an extremely viable solution to create a system like you mention, Also fairly easy when you're speaking on a basic level of just moving Kerfer around an object & not completely re-pathing them
Although, A great addition to a Navmesh (Like what I suspect MrDrNose would be using for his entity's navigation) -Would be one of a few different avoidance methods, I found this awesome official UE4 Doc which details such systems & Their implementations & Purposes. It's a lot but I feel it would be very possible to implement & Incorporate something like this to the existing systems (If they are what I assume)
https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/ArtificialIntell...
Also, I haven't been able to test it out but the nails I used were specifically the axle nails which will most likely make a big difference. I even had one of the green garbage bins just clipping through a wall in a circle. But the Kerfer plug incident was extreme in comparison & A lot harder to recreate. The floating nail should move in conjunction to the plug *^-^*