[SiVal]

Honest question, how is anyone expected to keep up with all of this?

That is a good, honest question, but there is a different standard of expectations for some random programmer doing a project and one of the biggest, most powerful multinational corporations on the planet with business operations (and legal advisors) in most of the world's countries.

If Samsung has the legal muscle to go up against Apple and others in the courtrooms of the world, and the technical muscle to customize multiple operating systems for countless products, they have the resources to read and understand the Linux license. While inept bungling is always a possible explanation for any party, a more likely explanation for a license violation for something as fundamental as an operating system by any party with that level of resources (if one were to ever occur) would be that they examined the issue, understood the situation, and decided that they could probably get away with it.