Looks like racing to me….
Personally I’m amazed that Rotax offers a warranty on their motors, I haven’t heard of an IAME clutch warranty but if you can get it that would be nice. You should also buy a spare since you’re planning on spinning that thing at 15k.
I’ve seen ’em break like this before, don’t believe it’s really a defect, just in the nature of how the part works. Be happy you’re not maintaining a disk clutch, or one of the old BURCO style units we had back in the day 😉