Philippines is US' gateway to Asia since time immemorial. It would be hard for it to let it go. But on the other hand, Philippines and China have always been partners in trade even before the former was colonized. China is super powerful now too. So... Philippines is in a confusing state right now. Hooray for better relations with China though.
But what would the other ASEAN nations think? Obviously China is a major trade partner for ASEAN, but we also have everyone scrambling over the South China Sea.
#ThisIsWhyWeShouldAllBeThaiInstead