Dylan's speech was so popular because of its coherence of subject.
After acquiring Barry's manuscript, the Holy Temple devoted itself to deciphering the Transformation Spell ā involving Flesh Reshaping and the Elves' Taming Technique.
So, transformation is not the plundering of the soul, but a higher form of symbiosis.
It's not that local scholars couldn't think of it; they simply didn't delve deeply enough in their research.
After all, beyond Makala, interdisciplinary studies are taboo.
Any person of faith would naturally assume "having and using power deeply is an expression of faith."
Deepness equals grade five and above.
Going beyond that is considered betrayal and desecration.
Therefore, they stopped their integrative studies at the fourth level of spells.
This level obviously doesn't qualify as interdisciplinary.
Of course, those were subjective reasons.