Fact of the matter is PAL's legacy cost structure has been exposed and found wanting against the phenom of the LCC after deregulation of the industry. One tangible quantitative measure is the ratio of employee to aircraft. Leaner legacy carriers have standards of about 115:1, LCCs (like CebuPac) have about 80-90:1. PAL in its current structure has about 180 employees per aircraft.
The actual number for Cebu Pacific is 77 and closer to 200 for PAL