Barring any unforeseen circumstances, Asia’s top pole vaulter EJ Obiena will finally assume the duty of flag bearer for the Philippines in the 31st Southeast Asian Games, a role he was supposed to do but eventually let go during the Tokyo Olympics. Obiena arrived in Hanoi from Formia, Italy on Wednesday, just in time for the opening ceremonies on Thursday at My Dinh National Stadium for the 31st edition of these games. The 26-year-old Obiena, the world’s sixth best pole vaulter but Asia’s best with a World Athletics score of 1374, was nominated Team Philippines’ flag-bearer, together with Olym…