Is the contract restricted to the buyers, or to the "any 3rd party" of the GPL?

Perhaps I should have made this clearer in the article, but as is commonly the case with lawsuits, the SFC is making multiple arguments. It's arguing that it is a third-party beneficiary of the GPL agreement between the copyright holders and VIZIO, _and_ that a specific contract exists because they accepted a source offer that VIZIO made.