It’s several orders of magnitude safer than lead, heck you can order a drink in a copper mug at any bar in Vancouver (Moscow Mule). Most of us still receive our drinking water from copper pipe too.
Life isn’t without risk, I just take enough of them cutting exposure to the easy ones to avoid, like lead in game meat, is worth it for me personally.
News to me, will look them up. CEBs are decent but strike me as not having “nailed it” in the lead free game. They use Allen broaches as a manufacturing simplification to do the nose cavities, and it’s not the ideal system. Perhaps I need to dust off the lathe one day and make a few bullets that shed three petals that account for a third to half of the bullet’s mass, leaving a solid core to penetrate. I better stick to the day job for the foreseeable future though.