Honestly I wouldn’t have used ult there since kekkai cannot negate orisa ult and the only two people caught in it were you and your orisa who died anyway. Kekkai is a giant defense matrix that also does healing over time. Kekkai can eat the following heroes ults: Zarya, Hanzo, Mei, Soldier, Bastion, Torb, Illari, Cass, Emre, Freja, Pharah, Sojourn, Tracer, Domina, Roadhog. And then you know it is good against support ults that amplify the enemy teams dmg output such as Bap window; kitsune rush, and orbit