I think the point of this being an Omegaverse is not necessarily to explore the dynamics of the Alpha-Omega pair; but the battling of instincts and inner-conflicts that arise because of it.
Kiryuu had a bad past because he's an alpha, and Aoi wanted to prove that he loves him beyond their assigned secondary genders, which is hard because they seem to be a fated pair.
In this story, their roles and instincts are meant to be an obstacle. It IS the conflict.
I think the reason for the uncommon pairing position is because this story is supposed to show that Aoi's love for him is beyond the typical omega yearning, as observed by Kiryuu, which may reassure him (considering his past) that he sees him beyond being an alpha. (He remarks that it's strange that he's different from typical omega instincts - he's worried about instinctual yearning - Aoi surpasses that consciously and subconsciously)
Without the omegaverse part, they'd only have the typical conflict of Teacher-student type of story. No instincts to battle or overcome, no strange occurences in the past or present, no approach to the atypical and divergent roles.
I think the point of this being an Omegaverse is not necessarily to explore the dynamics of the Alpha-Omega pair; but the battling of instincts and inner-conflicts that arise because of it.
Kiryuu had a bad past because he's an alpha, and Aoi wanted to prove that he loves him beyond their assigned secondary genders, which is hard because they seem to be a fated pair.
In this story, their roles and instincts are meant to be an obstacle. It IS the conflict.
I think the reason for the uncommon pairing position is because this story is supposed to show that Aoi's love for him is beyond the typical omega yearning, as observed by Kiryuu, which may reassure him (considering his past) that he sees him beyond being an alpha. (He remarks that it's strange that he's different from typical omega instincts - he's worried about instinctual yearning - Aoi surpasses that consciously and subconsciously)
Without the omegaverse part, they'd only have the typical conflict of Teacher-student type of story. No instincts to battle or overcome, no strange occurences in the past or present, no approach to the atypical and divergent roles.
Then again, this is just my perception of it.