Hey guys, sorry for the massive delay but I finally got over there to check it out and jaybo beat me to it! Here's the shots of mine with the exact same problem, but the bearing looks to be in far better shape, which I believe can be a testament to the fact that it doesn't appear to be a starved for oil problem but rather an issue with a ball bearing used in a side load application.
Additionally, I can confirm that my plates were installed correctly as I put them in myself, so as to whether or not this bearing failure was caused by misaligned clutch plates, I'd wager it's not related. My clutch plate was put in last summer and the bike has seen roughly 10K miles in that time so it didn't last long.
I've already written to barnett about the problem, can these bearings even be replaced or does the whole pressure plate need to be replaced? If they don't cover the cost of the replacement given the short lifespan, I'll never buy another barnett clutch part again.
I guess it's just a waiting game for now.