That's just not at all true. If you've ever worked in / around law you'd understand how it's less about right and wrong and more about risk management. Non guilty parties settle all the time. (I have no idea if that is true in this case or not) but simply the idea that they settled for $$$ amount means they're guilty is just false.
As an engineer that's had to advise corporate legal on how to look at various things I can assure you that most of it is just risk mitigation and reward. From lawsuits to contracts, it's all the same stuff. That's just how legal people think. I don't think it goes any deeper than that.
How much did they settle for? I don't see that in the article. Just because they were sued for $58M doesn't mean that the settlement amount was anywhere near that!