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I dunno. In a completely different sport of American football, would you consider the first winner of the Heisman Trophy, Jay Berwanger, removed from Category:American football running backs for he didn't play football again after he graduated? Plus, if you remove the different FAs in the Filipino footy categories, most of those which are left are essentially extensions of the varsity teams. For example, Diliman FC are for UP Fighting Maroons alumni, same for Mendiola United FC and the San Beda Red Lions. Most players of the national team are varsity team players.
If we'd go through your example, no Filipino footballer would be included in that category unless he played outside the Philippines. – the Duck "