From what I've been able to gather the most popular/standard/traditional te'amim melodies were collected, blended, and then published by Abrahim Binder, a reform Jew. Source: http://www.milkenarchive.org/artists/view/abraham-binder/
It seems to me that the Orthodox movement makes many declarations about how the Reform movement has broken away or is destroying tradition. And so the idea that the te'amim system would be based on the works of the Reform movement would be really hypocritical. So why use the system?