The reason for that phrase is that no, Mother Nature's laws are all that matters, unlike our puny laws, hers are inherent properties of the universe, no need for enforcement because you literally can't break them. A court can insist that up is down, but it ain't.
They come into relevance about the time the phrase "despite what the courts may say" was uttered. The intent behind the phrase "you can pry it from my cold dead hands" is roughly the same.
Of course I think that armed revolution over ToS is utterly laughable. But I'm merely answering your question.
For an example of a situation the phase actually applies to, consider "despite what the courts may say we are removing the flock cameras".