So, why would the Americans bother with such irrelevant thing?
You should try and answer that question yourself, since your opinion and outlook regarding this issue is an aberration or goes against the grain from the majority of members here and from the opinions of American security analysts that aren't delusional with America rules, America # 1 sloganeering.
The most intensive fighting the Philippine Military was involved with most recently was the insurrection/rebel/separatists/terrorists operations in Marawi which is located in the southern islands of the Philippines. In that operation, Army, Airforce, and Navy of the Philippine Military were involved in trying to quell of ragtag, irregular forces composed of more or less 500 fighters which were able to withstand the combined assault of the Phil military for 5 long months. Then President Duterte did not hesitate to suspend habeas corpus, imposed martial law in all of Mindanao to ensure the military operations against the terrorist rebels were to succeed operationally with extreme prejudice.
Then read the AFTER ACTION REPORT of that battle and come back to us if you still think that Philippine military has the pre-requisite, or even the sufficient amount of civilian-military fusion, civilian-military infrastructures, military training, military doctrine, military know-how and equipment to be even come close to being SUFFICIENT to make any iota of difference against any potential war with CHINA'S PLA/PLAAF/PLAN/PLGAF.