Methinx that "cult" has become a loaded term now. But it doesn't have to be that way, and I'm fairly certain that that's not the way it was meant to be understood in the article. I just checked this wikilink:

en.wikipedia.org/wiki/Cult...ractice%29

<<In traditional usage, the cult of a religion, quite apart from its sacred writings ("scriptures"), its theology or myths, or the personal faith of its believers, is the totality of external religious practice and observance, the neglect of which is the definition of impiety. Cult is literally the "care" owed to the god and the shrine. The term "cult" first appeared in English in 1617, derived from the French culte, meaning "worship" or "a particular form of worship" which in turn originated from the Latin word cultus meaning "care, cultivation, worship," originally "tended, cultivated," also the past participle of colere "to till". Thus in French, for example, sections in newspapers giving the schedule of worship at Catholic churches are headed Culte Catholique; the section giving the schedule of protestant churches is headed culte réformé.

By extension, "cult" has come to connote the total cultural aspects of a religion, as they are distinguished from others through change and individualization. Well-known global cults include Islam and Christianity.

The meaning "devotion to a person or thing" is from 1829, and from that connotation comes the modern meaning of "cult" as in a "cultist" or a "cult following". Cult and cultist have recently accrued negative connotations that are separately dealt with at the entry cult.

In Roman Catholicism, cultus or cult is the technical term for the following and devotion or veneration extended to a particular saint.

Some Christians make refined distinctions between worship and veneration, both of which are outwardly expressed in cultus or cult and are indistinguishable to the observer. Catholicism and Eastern Orthodoxy distinguish between worship (Latin adoratio, Greek latreia [λατρεια]) which is due to God alone, and veneration (Latin veneratio, Greek doulia [δουλεια]), which may be lawfully offered to the saints. These private distinctions between deity and mediators are exhaustively treated at the entries for worship and veneration.

Among the observances in the cult of a deity are rituals and ceremonies, which may involve spoken or sung prayers or hymns, and often sacrifice, or substitutes for sacrifice. Other manifestations of the cult of a deity are the preservation of relics or the creation of images, such as icons (usually connoting a flat painted image) or three-dimensional cultic images, denigrated as "idols", and the specification of sacred places, hilltops and mountains, fissures and caves, springs, pools and groves, or even individual trees or stones, which may be the seat of an oracle or the venerated site of a vision, apparition, miracle or other occurrence commemorated or recreated in cult practices. Sacred places may be identified and elaborated by construction of shrines and temples, on which are centered public attention at religious festivals (called "feasts" in some Christian communities) and which may become the center for pilgrimages.

The comparative study of cult practice is part of the disciplines of the anthropology of religion and the sociology of religion, two aspects of comparative religion. In the context of many religious organisations themselves, the study of cultic or liturgical practises is called liturgiology.>>

So, although in everyday language, we use "cult" with a negative sociological connotation, in the study of ancient religions, it is a neutral term.