It just seem strange hoping that your amp blows up in order to spare the fuse.
My equipment never blows fuses. Also my amps are less than $2k each, I have four not including subs... Isn't it about sound? For me, yes.
I have no idea if the $2844 red/black fuse is worth it. Who cares, though, the $71 light blue one is insane! I just got one in, and put it in my CD transport. It blows the SR blue, treated with Total Contact, that it replaced completely out of the water! I actually ordered the $28.50 black, but Michael at Tweek Geek got shorted some blacks in his first order, so he did the classy thing and upgraded me to the light blue at no charge.

If your mind can entertain even the slightest possibility that there could be something to these fuses, then you owe it to yourself to try one. That’s all I have to say about that.
Here is a task for a youtube reviewer: stick the fuse in and compare it to a solid piece of 5mmx20mm copper rod. That should settle the issue in no time. The only conceivable benefit can be the reduction of resistance, inductance or capacitance compared to a standard fuse, a solid connection being the reference. Warning: a solid piece of copper is only a few cents but not a fuse. Don‘t do this other than for a temporary comparison!
I wrote the head of the fuse company asking if he could improve the sound of my N45 magnets in place of any fuse. 
I received a email back the next day saying he could treat any of my magnets physical size with his 6 level process..I want to know more but words are lost in translation.
As tommylion has I will buy a few of the Asian fuses and compare to my cryogenically treated magnets which are inherently directional.  Of course all of this is for a momentary comparison. If these fuses are better than the N45s (installed only under test) then these new arrivals could be a new reality.
Tom