Should it have been a boygroup to become the face of the SMCU? Boygroups have stronger fandom; and fandoms also enjoy storylines and elaborate concepts more which they can discuss and theorize about. Considering the cost of the project of Aespa not just mvs; but the episodes they are producing and the future plans they might have; it makes more sense to have a boygroup represent it who will also earn enough to recover the costs.
Aespa might have more public recognition but does it matter for the SMCU concept to be known to the public? Gp is never going to bother figure out their universe.