Josh, oddly enough, they used to sell blasters. They've banned them because they failed a quality test- shoot some mesh eyewear at 330FPS. If 1 of the 10 BBs shatter then they ban them from use on site. Safety reasons, apparently. Funnily enough, 4 of the 10 Bulldogs failed the test, whereas only 1 blaster did.
Their methodology for testing is awful as I mentioned. If you were to pick a random brand of BB and check one BB and it happened to be uneven would the conclusion be that brand is awful? As M_P said most/all brands shatter and as we discussed before the fragments have no energy passing through mesh