I seem to remember the BoA thinking of Ifrit worship as contemptuous as well, however, I don't think this would require a huge change in your character's concept.
Perhaps the tribe's negative outlook on Ifrit worship sparked (ha, puns) a curiosity within your character about him. This could have lead to a secret fascination with the Primal, pretty much along how you describe him, except it would be an exciting and personal secret that he would keep from his tribe.
This route could also lead to some interesting character development down the road, as he gradually realizes that the object of his admiration is actually a terrible and merciless beast who wishes to enslave all of Eorzea to his will.
Just a suggestion though! Feel free to ignore!
Perhaps the tribe's negative outlook on Ifrit worship sparked (ha, puns) a curiosity within your character about him. This could have lead to a secret fascination with the Primal, pretty much along how you describe him, except it would be an exciting and personal secret that he would keep from his tribe.
This route could also lead to some interesting character development down the road, as he gradually realizes that the object of his admiration is actually a terrible and merciless beast who wishes to enslave all of Eorzea to his will.
Just a suggestion though! Feel free to ignore!