Wow, pardon my french, but what the fuck is this article. This sounds like a paid advertisement. "The company, owned by Erich Spangenberg, of Dallas, is seeking a reasonable royalty of $5.1 million." How much did they get paid for that line?
Used in this context, "reasonable royalty" is a legal term that describes the money that is to be paid due to the infringement. I don't believe the author was making a judgement call on the fairness of the award.