I've wondered for a while, what exactly is the PH's endgame here?
Restarting EDCA and buying mid-range missiles, sure, to some degree they strengthen your defense. But these things won't help the PH proactively advance their interest in the SCS.
Best case imo, is that they are used as negotiating leverage in the future when the PH is willing to come around. But personally, I don't see this happening before the 2028 election.