Oracle knows how to use the legal system to obtain money. It's one of their core competencies. If you know the history of Oracle, you know that's not sarcasm, it's just an observation. If they're not doing it now, it's because they (correctly) realize there's no chance they could make money with it, and I don't see that changing in the future. If they actually tried to sue someone for it, "JavaScript" would change to "ECMAScript" at the speed of "Find & Replace".