Domestic dumping may be prohibited as predatory pricing under anti-trust, depending on the circumstances, including the pricer needing to have market power.
Right, but there is zero differentiation there between physical and virtual products. GP implied that there is some sort of protection against price dumping of physical products that doesn't exist for virtual products.
The differentiation is in your choice of terminology. "Virtual" products have zero marginal cost, and the statute mentions marginal cost. The statute doesn't have to mention "virtual" products because it mentions marginal cost.