ANC 24/7 (where I got the clip) lied and said that the PLA didn’t respond, at all! As for the South China Sea Arbitration, see this video.

PH-US drills off Mindoro ‘shadowed,’ shortened

Del Pilar’s sister ship, the BRP Ramon Alcaraz (PS-16), sailed from Subic port the same day. On Tuesday, however, the US side asked for a 24-hour delay due to “operational requirements.”
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What is your intention, over?” “Philippine warship 15, this is Chinese Navy warship 570 conducting lawful activities in our territorial seas, over,” came the reply.

One more time, from the Philippine ship: “Chinese warship 570, you are within the Philippines’ exclusive economic zone. Your actions will affect Philippine-Chinese relations and will be reported to concerned authorities, over.”
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On Wednesday, US Navy destroyer USS Sterett (DDG- 104), one of the escort ships of the nuclear-powered aircraft carrier USS Carl Vinson (CVN-70), was the only American ship to arrive for the exercises.

Canceled, shortened

Two other US warships and the USS Carl Vinson were expected to join but did not show up due to “operational necessity.”

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“Unfortunately, they did not give specifics (why the other activities were canceled). They just said that ‘due to some operational necessity,’ they have to reallocate some of their forces to other tasks,” Carlos said in an interview on board the Del Pilar.

Related:

PLA conducts naval, air patrols in South China Sea amid US-Philippine provocations

In the name of resupply, the Philippines has repeatedly sent vessels carrying illegal building materials in attempts to reinforce a warship that has been illegally grounded on Ren’ai Reef since 1999 to permanently occupy the Chinese reef.

Those attempts were blocked by China Coast Guard vessels with legitimate and professional restriction measures.