FWIW there are actually 7 P's in marketing:
Product, Price, Promoton, Place, Packaging, Positioning & People.
However, I do agree with you that people often consider promotion = marketing when promotion ≠ marketing; its just one aspect of it and embracing all aspects of the marketing mix is beneficial to any company.
However, I do agree with you that people often consider promotion = marketing when promotion ≠ marketing; its just one aspect of it and embracing all aspects of the marketing mix is beneficial to any company.