I hope the Chinese side force the Philippines to also admit that a special arrangement was agreed by both parties.
Otherwise china says there's a special arrangement but the Philippines denies it publically and then they successfully complete a supply mission. Makes china look weak on the surface. The Philippines can just brag that they are able to make supply missions and china can't stop them, while denying a special arrangement ever took place. A PR win.
Kind of like what the US did to the USSR during the Cuban missile crisis.
Interestingly, the statement by the Philippines about the resupply was deleted shortly after it was published. Satellite imagery verified that the mission happened, and also that CCG ships were present but did not interfere. There does not seem to be any celebration, but rather an effort to keep it low-profile. A curious situation, since obviously something is happening behind the scenes. The question is what.