> Holacracy a cult? Why not traditional management a cult? The difference being simply that traditional management is broadly accepted as "normal" by society at large.

You can't define 'cult' without an element of normative determination. It's right there in the first sentence on the Wiki page for cult, and in every dictionary definition I could find.

Also, the term does not necessarily carry a derogatory tone. I've seen many small spiritual groups self-describe as cults.