The Ludicrous fuse seems to be single use as well.
From
The Tesla Model S Just Got Upgraded To LUDICROUS SPEED — Jalopnik:While working on our goal of making the power train last a million miles, we came up with the idea for an advanced smart fuse for the battery. Instead of a standard fuse that just melts past a certain amperage, which means you aren’t exactly sure when it will or won’t melt or if it will arc when it does, we developed a fuse with its own electronics and a tiny lithium-ion battery. It constantly monitors current at the millisecond level and is pyro-actuated to cut power with extreme precision and certainty.
To me, "pyro-activated" means some kind of explosive device that blows a link. I doubt that can be reset. The ludicrous fuse will have to be replaced as well before the car can be driven again.
Thermal fuses that melt away are pretty reliable as long as you stay away from the "melt" zone. The monitoring and control needed for the active, pyro-actuated, ludicrous fuse will surely add additional failure points.