That peeled-open tube is just a covering. The baffle stack is welded, with a screw cap on each end, and a simple aluminum sleeve - the split tube in the photo - around the outside. It’s not a pressure-bearing tube, only an aesthetic cover and a blast/jet director in the event of a weld failure like this one.
So half of his bafflestack and end cap are downrange somewhere, and the pressure vented through the side when the baffle stack ruptured also resultingly ruptured the exterior aluminum sleeve. Might have been a bad weld, might have been a destructive baffle strike (less likely).
Silencerco will take care of you. I’d personally bet they’ll replace it - the rest of the bafflestack might be ok, but it also may not be - BUT - the serial number is on that aluminum sleeve, which is obviously destroyed. Easier for them to simply start over, as I don’t believe they can replace that sleeve with a duplicated serial number. You still end up with a new can in mint condition, but you have to wait a while since the new serial means a new transfer, new stamp.