The idea that an event can standardize a teaching unconditionally reveals a limited understanding of human dynamics and contextual reception.
Such an assertion ignores the necessity of cultural receptivity and local interpretation.
Many external elements must be aligned for a single manifestation, such as a healing, to resonate in a unified way with a broader teaching.
If the listeners on the mountain already considered miracles as metaphors, the healing would not have reinforced the teaching about a loving God, demonstrating the nature of the noise in such simplistic assumptions.