Also keep in mind that it's still a proprietary model. Meta gets all the benefits of open source contributions and testing while retaining exclusive business use.
EDIT: Looks like they did open up commercial use with version 2 with the explicit restriction to prevent any major competitor to Meta from using Llama, and that any improvements related to Llama can only apply to Llama. So an attempt to expand the scope of usage and adoption of their proprietary model without their main competitors being able to use it, which still fits my original point.
