Shred does not have multiple projectiles hit

In the skills tooltip description, it has the line "Multiple Projectiles can hit the same target".

This does not work. I've tested it by going into wolvenhold, freezing the boss, attacking once with shred and delayed fuse. The ice fragments don't all detonate at the same time, they are close but it's far enough apart where you would be able to see the life or stagger bar move multiple times. It doesn't.

I thought maybe it was when using Cross Slash, but that would be a line on Cross Slash if it was the case. I tested it still with cross slash, same process, but the damage was not increased. I used a low level cross slash with a level 1 weapon in swap so it did virtually no additional damage. If shred's ice fragments were multi-hitting in this case, it would be very easy to tell as the damage would be tripled..

Unless I'm missing something - this doesn't work. Running multi projectiles, nova, etc is just wasting a slot and hurting the damage of ice fragments.