I really strongly disagree with this. Supreme Court decisions are usually quite readable and will give a you a nuanced overview of the legal background and justifications for the ruling. They're usually very accessible and not nearly as crammed with legal jargon as you might guess. I try to read as many important decisions as I can and I have no legal training at all. I only occasionally have to look up a term. I would say they're easier, on average, for me to read than a CS paper. And after reading a few Scotus papers, you'll have a much deeper understanding of how our legal system works, and of course a great deal more about the individual decisions. You'll even read news articles about a decision and say, "That's not what the decision was about at all!"

Supreme Court rulings are, of course, quite long, and there's nothing wrong with a summary article like this one. But my point is that you shouldn't fear the legalese.