The decision to use the MIT License is not without its critics

> Although I'm hoping that the Google/Oracle spat has helped clarify the fact that if it's copyrightable it's not patentable

I don't think the case did that at all. Google won on fair use grounds which is reusable by precisely no one except as a benchmark to compare their reuse against. The patent claims were, IIRC, thrown out early, but kept it on the federal circuit because patent claims automatically go there.