I didn’t realize he wasn’t trying to sell his game, so I guess we need a different analogy.
Ok, imagine you and your brother are making a website where friends can post about their lives and keep up with each other during and after college. You’re pretty open with your project and then one day the one weird guy in your friend group launches your project without consulting you. The project takes off and makes billions of dollars. You sue the weirdo and he gives you some money, but you’re still pissed about it. Did you get Zucked?
Well, according to China, those waters are their territory, which means that the presence of foreign military vessels is an invasion.
Practically speaking, I think you could call that area a contested region, so minor skirmishes like this are expected and could escalate to war (like Crimea eventually did).
I think that the Philippines approach has been something like, ‘You can claim those waters if you want, but you can’t possibly keep us from entering them, so we’re just going to ignore you until you start killing our people, and then we’re gonna call in big brother America.’