We're bringing up rights because Jacobin framed in the terms of rights. And within the specific context of the article, we don't need to sorry about worrying about repercussions - Moderna has effectively granted a license to allow 'random countries' to make their vaccine without being suited for patent infringement.
Jacobin's point is that the pledge is meaningless because the patent lacks sufficient information to make the vaccine anyways - it's all locked up in trade secrets. Jacobin then frames this in terms of rights.
Jacobin claims that the way patents are usually discussed will imply that patents are about 'positive rights' - that is, if you have a patent or license, then you have the ability to commercialize (or whatever) the thing that is patented. Jacobin then claims that in reality, patents are just a negative right. Having a patent, or a license to a patent is just a freedom from not being sued for commercializing a product - since the real positive right that people want - the ability to successfully produce the object is actually wrapped under trade-secrets. The article is basically arguing that this split is injust, or at least extremely misleading, and is trying to call out the bullshit.