Gnosticism was a minor religion, overshadowed by the Eleusinian Cult. So why do gnost

And why AR the Eleusinian Orgia rarely mentioned today?

Other groups were also larger than gnosticism as well including Magna Mater, Serapis, Mithras, Isis, Corybabtes, and others.

Comparatively, gnosticism was not all that significant.

Because it was a major influence on the formation of Christianity.

Because of the overblown press surrounding the Nag Hammadi texts.

The Proto-Gnostics and Gnostics claimed to be true followers of Christ and thus there was much energy given to refuting them in the NT and the writings of the Early Fathers. Thus biblical studies and Church historians today give more attention to the Gnostics.

Possibly because of the allusions to it by Dan Brown in his books.