I don't think they're supposed to be crushed. These are quotes from the APP web site.
Advanced TaperTech™ technology delivers the ultimate ignition along the SUPER STICK™ edges.
Q: I want to use STICKS® or SUPER STICKS™ Compressed Charges in my muzzleloading rifle and I see that one end is smaller than the other. Which end of the stick should be loaded in the barrel first?
A: The tapered shape of the STICKS® or SUPER STICKS™ Compressed Charges makes for easier loading. Load by putting in the the smaller end in first and pressing with your thumb. Load your projectile on top of that and push to the bottom of the bore using your ramrod.