The United States was obviously not happy with the recent visit by Duterte to China and with ongoing efforts to defuse tensions, so the US has to make another provocation to derail these developments, and with the significant number of pro US fifth columnists in the Philippine government, this is an easy feat to do.
Of course, the swift reporting and commentary by NATO affiliated media is not surprising, now they are building up the narrative that despite efforts by the Philippine government and Duterte, the Chinese continue to "harass" the Philippines and in short making it look like the Chinese cannot be trusted.
I wouldn't say warhawk but Sinophobic yes, and this sinophobia is a result of decades long propaganda by the US and its lackeys in the media industry. Recall that the US has similar programs to induce Sinophobic sentiments in Indonesia which resulted in ethnic Chinese people getting harassed and killed by the locals.
This is indeed very frustrating for the average Filipino who only wishes to have good relations with their neighbors, Im pretty sure this is the same frustration felt by poles, finns, lithuanians, etc who don't want to see conflict with the Russians but are helplessly dragged in a confrontation with Russia because of their US controlled governments.
I agree, this incident is far from over and I fear the US will try to escalate the situation to push the entire region to the brink of a shooting war similar to Ukraine but this time its the Philippines that will be used as a meat shield against China.