Original sentence: By metonymy, these casing pieces are often referred to as "shrapnel" (particularly by non-military media sources), though this is the result of the original term being culturally genericized due to its uniquely memorable phonology (similar to how bazooka is sometimes still used to refer to any shoulder-fired rocket launcher)
Edited sentence: These casing pieces are often incorrectly referred to as "shrapnel" (particularly by non-military media sources), though this is the result of the original term being culturally genericized due to its uniquely memorable phonology (similar to how bazooka is sometimes still used to refer to any shoulder-fired rocket launcher)