Genetic engineering has been used since ancient times by selective breeding. Long before the discovery of genes, farmers and breeders were selectively breeding animals to obtain desired characteristics and get rid of undesired characteristics. Animal husbandry was taught both informally and formally in universities.
The same concept has been used for crops such as corn. Even your fancy dog was genetically engineered over many generations; very carefully if it is a registered breed. As science advances, new techniques are used to accomplish the intent of breeders to better the characteristics of their herds and crops and make them more desirable to consumers.
Thus, I cannot see why labels should include genetic engineering and hope you will vote against Initiative 522.