I would aggree but apparently that's how all of them are: Force Fed Hopper = Breach Breaks? - DAM Discussion - The DAM Operators Network
Remember that the gun has to fit first strikes as well as regulars...that may have driven some different choices in bolt position.
Mine's going back for some warranty work. If it comes back with the same roll back issue I'm going to look into possible modifications to the eye-pipe...I think it might be possible to put a roll back detent on that wouldn't interfere with the first strike rounds.