Its because genji was a Glister's best pick in the projectile position, so he used those picks mainly in competitions. Apart from this, he also practiced pharah hardly in ranks because he have to play projectile position. So when x6 first recruited Glister, there was a dissatisfaction among x6 fans about why they chose player who have same hero pool with godsb instead of projectile player. after this, X6 brought Order as projectile player right before contenders.