An MLM is a regular pyramid scheme with an actual product mixed in to lend legitimacy and to make it legal in the first place.

The proposed business virus is different. Unlike a pyramid scheme most costs are on signup, and there are no multi-level incentive structures.

Well at least with MLM there is some sort of product changing hands (knives, essential oils, etc.) Here, as far as I can tell, the purpose of the business is to create more businesses that create more businesses, etc. (but there is no actual product).