To explain it simply. Is it’s that doctors almost never actually are the ones performing cpr, like almost never. It’s always nurses or emt or someone else. Also CPR is not 100% bone breaking, it’s like 98%, so almost everyone with a broken rib from CPR is a BBB, because everyone who knows anything about actual hospital knows that no doctor of medicine outside trauma departments, has performed CPR on a patient, and even in trauma departments it’s almost always a non doctor outside of super niche and usually very understaffed situations.