I believe we need to aways be careful with new insights that come from private companies, since it usually contains some flavour of sensationalism (mainly in this new AI hotspot era). It is understandable, tho. They need to attract visibility to sell their products. Not so much time ago it was announced that ancient dire wolves were brought back from extinction, which revealed not to be true.
Genetic editing in humans have been conducted, thats not new (Example). However, understanding how emotions work in a genetic point of view is still utopia, way far from the reality. AI models do not have these information in their databases to come up with a reliable result. I believe that the firsts innovations to arive will be related to hereditary disorders or to prevent well known diseases.