KOSMIK and the Fuse
It is simply the last resort of safety when it comes to your physical integrity (burnt fingers). No more, no less. You know what a LiPo can make happen to cables when everything goes wrong.
voltage rating: 58V
melting time limits at 75% of rated current (200A): min/max 100h/-
melting time limits at 200% of rated current (200A): min/max 1s/15s
The fuse will blow so generally only after several seconds pending 400A. Actually, no reason to fear reliability could go by use of the fuse.