Not really a big deal generally - at least, I haven't had any problems with the Freedom Munitions version of this. If you just reload it once and fire it in a normal pistol, you likely won't get any of those separations. I haven't at least. I use Hornady dies, and have no problems processing this brass.
At first I thought it was some kind of spiff new quality super high pressure brass with a shelf to prevent over-seating bullets. But no, it's just a cheaper manufacturing method (apparently they punch-draw faster/easier meaning you can form more cases with cheaper/faster equipment this way - I guess).
Whenever I see it, I've usually gone to the trouble of picking it up and tumbling it by now, so I thrown them in a fire and forget pile. Shot bunches of them, never had a problem. I don't use them more than once though.